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Finding the Fourth Proportional to 58,670, 88,002.60 and 21,230.96

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Solution

The fourth proportional to 58,670, 88,002.60 and 21,230.96 is: 31,845.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,670 : 88,002.60 = 21,230.96 : x
  2. Step 2: Convert to fraction form
    58,670/88,002.60 = 21,230.96/x
  3. Step 3: Cross multiply
    58,670x = 88,002.60 × 21,230.96
  4. Step 4: Simplify right side
    58,670x = 1,868,379,680.50
  5. Step 5: Solve for x
    x = 1,868,379,680.50/58,670
  6. Step 6: Final answer
    x = 31,845.57

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Why These Related Problems?

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