Home / 74,420.93-102,700.48-40,429.15

Finding the Fourth Proportional to 74,420.93, 102,700.48 and 40,429.15

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Solution

The fourth proportional to 74,420.93, 102,700.48 and 40,429.15 is: 55,792.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,420.93 : 102,700.48 = 40,429.15 : x
  2. Step 2: Convert to fraction form
    74,420.93/102,700.48 = 40,429.15/x
  3. Step 3: Cross multiply
    74,420.93x = 102,700.48 × 40,429.15
  4. Step 4: Simplify right side
    74,420.93x = 4,152,092,753.17
  5. Step 5: Solve for x
    x = 4,152,092,753.17/74,420.93
  6. Step 6: Final answer
    x = 55,792.00

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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.