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Finding the Fourth Proportional to 58,881.60, 81,269.28 and 38,740.32

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Solution

The fourth proportional to 58,881.60, 81,269.28 and 38,740.32 is: 53,469.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,881.60 : 81,269.28 = 38,740.32 : x
  2. Step 2: Convert to fraction form
    58,881.60/81,269.28 = 38,740.32/x
  3. Step 3: Cross multiply
    58,881.60x = 81,269.28 × 38,740.32
  4. Step 4: Simplify right side
    58,881.60x = 3,148,397,913.37
  5. Step 5: Solve for x
    x = 3,148,397,913.37/58,881.60
  6. Step 6: Final answer
    x = 53,469.98

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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.