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Finding the Fourth Proportional to 60,440, 90,663.24 and 18,890.24

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Solution

The fourth proportional to 60,440, 90,663.24 and 18,890.24 is: 28,336.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,440 : 90,663.24 = 18,890.24 : x
  2. Step 2: Convert to fraction form
    60,440/90,663.24 = 18,890.24/x
  3. Step 3: Cross multiply
    60,440x = 90,663.24 × 18,890.24
  4. Step 4: Simplify right side
    60,440x = 1,712,650,362.78
  5. Step 5: Solve for x
    x = 1,712,650,362.78/60,440
  6. Step 6: Final answer
    x = 28,336.37

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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.