Home / 74,373.83-102,637.11-40,382.31

Finding the Fourth Proportional to 74,373.83, 102,637.11 and 40,382.31

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Solution

The fourth proportional to 74,373.83, 102,637.11 and 40,382.31 is: 55,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,373.83 : 102,637.11 = 40,382.31 : x
  2. Step 2: Convert to fraction form
    74,373.83/102,637.11 = 40,382.31/x
  3. Step 3: Cross multiply
    74,373.83x = 102,637.11 × 40,382.31
  4. Step 4: Simplify right side
    74,373.83x = 4,144,723,593.52
  5. Step 5: Solve for x
    x = 4,144,723,593.52/74,373.83
  6. Step 6: Final answer
    x = 55,728.25

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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.