Home / 72,263.60-99,719.70-39,996.44

Finding the Fourth Proportional to 72,263.60, 99,719.70 and 39,996.44

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Solution

The fourth proportional to 72,263.60, 99,719.70 and 39,996.44 is: 55,192.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,263.60 : 99,719.70 = 39,996.44 : x
  2. Step 2: Convert to fraction form
    72,263.60/99,719.70 = 39,996.44/x
  3. Step 3: Cross multiply
    72,263.60x = 99,719.70 × 39,996.44
  4. Step 4: Simplify right side
    72,263.60x = 3,988,432,997.87
  5. Step 5: Solve for x
    x = 3,988,432,997.87/72,263.60
  6. Step 6: Final answer
    x = 55,192.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.