Home / 74,560.40-102,892.56-40,569.92

Finding the Fourth Proportional to 74,560.40, 102,892.56 and 40,569.92

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Solution

The fourth proportional to 74,560.40, 102,892.56 and 40,569.92 is: 55,986.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,560.40 : 102,892.56 = 40,569.92 : x
  2. Step 2: Convert to fraction form
    74,560.40/102,892.56 = 40,569.92/x
  3. Step 3: Cross multiply
    74,560.40x = 102,892.56 × 40,569.92
  4. Step 4: Simplify right side
    74,560.40x = 4,174,342,927.80
  5. Step 5: Solve for x
    x = 4,174,342,927.80/74,560.40
  6. Step 6: Final answer
    x = 55,986.06

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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.