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Finding the Fourth Proportional to 65,445.92, 98,116.88 and 28,484

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Solution

The fourth proportional to 65,445.92, 98,116.88 and 28,484 is: 42,703.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,445.92 : 98,116.88 = 28,484 : x
  2. Step 2: Convert to fraction form
    65,445.92/98,116.88 = 28,484/x
  3. Step 3: Cross multiply
    65,445.92x = 98,116.88 × 28,484
  4. Step 4: Simplify right side
    65,445.92x = 2,794,761,209.92
  5. Step 5: Solve for x
    x = 2,794,761,209.92/65,445.92
  6. Step 6: Final answer
    x = 42,703.37

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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.