Home / 85,366.02-127,985.60-40,950.48

Finding the Fourth Proportional to 85,366.02, 127,985.60 and 40,950.48

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Solution

The fourth proportional to 85,366.02, 127,985.60 and 40,950.48 is: 61,395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,366.02 : 127,985.60 = 40,950.48 : x
  2. Step 2: Convert to fraction form
    85,366.02/127,985.60 = 40,950.48/x
  3. Step 3: Cross multiply
    85,366.02x = 127,985.60 × 40,950.48
  4. Step 4: Simplify right side
    85,366.02x = 5,241,071,753.09
  5. Step 5: Solve for x
    x = 5,241,071,753.09/85,366.02
  6. Step 6: Final answer
    x = 61,395.29

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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.