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Finding the Fourth Proportional to 58,978.20, 88,640.10 and 57,941.40

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Solution

The fourth proportional to 58,978.20, 88,640.10 and 57,941.40 is: 87,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,978.20 : 88,640.10 = 57,941.40 : x
  2. Step 2: Convert to fraction form
    58,978.20/88,640.10 = 57,941.40/x
  3. Step 3: Cross multiply
    58,978.20x = 88,640.10 × 57,941.40
  4. Step 4: Simplify right side
    58,978.20x = 5,135,931,490.14
  5. Step 5: Solve for x
    x = 5,135,931,490.14/58,978.20
  6. Step 6: Final answer
    x = 87,081.86

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.