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Finding the Fourth Proportional to 64,030.60, 96,132.30 and 40,702.60

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Solution

The fourth proportional to 64,030.60, 96,132.30 and 40,702.60 is: 61,108.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,030.60 : 96,132.30 = 40,702.60 : x
  2. Step 2: Convert to fraction form
    64,030.60/96,132.30 = 40,702.60/x
  3. Step 3: Cross multiply
    64,030.60x = 96,132.30 × 40,702.60
  4. Step 4: Simplify right side
    64,030.60x = 3,912,834,553.98
  5. Step 5: Solve for x
    x = 3,912,834,553.98/64,030.60
  6. Step 6: Final answer
    x = 61,108.82

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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.