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Finding the Fourth Proportional to 65,615.35, 98,398.88 and 51,602.76

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Solution

The fourth proportional to 65,615.35, 98,398.88 and 51,602.76 is: 77,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,615.35 : 98,398.88 = 51,602.76 : x
  2. Step 2: Convert to fraction form
    65,615.35/98,398.88 = 51,602.76/x
  3. Step 3: Cross multiply
    65,615.35x = 98,398.88 × 51,602.76
  4. Step 4: Simplify right side
    65,615.35x = 5,077,653,788.91
  5. Step 5: Solve for x
    x = 5,077,653,788.91/65,615.35
  6. Step 6: Final answer
    x = 77,385.15

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1.5x scale

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.