Home / 85,003,119.60-127,788,114.60-72,531,970.80

Finding the Fourth Proportional to 85,003,119.60, 127,788,114.60 and 72,531,970.80

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Solution

The fourth proportional to 85,003,119.60, 127,788,114.60 and 72,531,970.80 is: 109,039,807.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,003,119.60 : 127,788,114.60 = 72,531,970.80 : x
  2. Step 2: Convert to fraction form
    85,003,119.60/127,788,114.60 = 72,531,970.80/x
  3. Step 3: Cross multiply
    85,003,119.60x = 127,788,114.60 × 72,531,970.80
  4. Step 4: Simplify right side
    85,003,119.60x = 9,268,723,796,754,252
  5. Step 5: Solve for x
    x = 9,268,723,796,754,252/85,003,119.60
  6. Step 6: Final answer
    x = 109,039,807.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.