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Finding the Fourth Proportional to 88,428, 122,134.32 and 58,568.16

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Solution

The fourth proportional to 88,428, 122,134.32 and 58,568.16 is: 80,892.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,428 : 122,134.32 = 58,568.16 : x
  2. Step 2: Convert to fraction form
    88,428/122,134.32 = 58,568.16/x
  3. Step 3: Cross multiply
    88,428x = 122,134.32 × 58,568.16
  4. Step 4: Simplify right side
    88,428x = 7,153,182,395.25
  5. Step 5: Solve for x
    x = 7,153,182,395.25/88,428
  6. Step 6: Final answer
    x = 80,892.73

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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.