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Finding the Fourth Proportional to 65,892.54, 90,928.10 and 39,037.52

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Solution

The fourth proportional to 65,892.54, 90,928.10 and 39,037.52 is: 53,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,892.54 : 90,928.10 = 39,037.52 : x
  2. Step 2: Convert to fraction form
    65,892.54/90,928.10 = 39,037.52/x
  3. Step 3: Cross multiply
    65,892.54x = 90,928.10 × 39,037.52
  4. Step 4: Simplify right side
    65,892.54x = 3,549,607,522.31
  5. Step 5: Solve for x
    x = 3,549,607,522.31/65,892.54
  6. Step 6: Final answer
    x = 53,869.64

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