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Finding the Fourth Proportional to 65,547.60, 98,321.40 and 28,101.30

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Solution

The fourth proportional to 65,547.60, 98,321.40 and 28,101.30 is: 42,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,547.60 : 98,321.40 = 28,101.30 : x
  2. Step 2: Convert to fraction form
    65,547.60/98,321.40 = 28,101.30/x
  3. Step 3: Cross multiply
    65,547.60x = 98,321.40 × 28,101.30
  4. Step 4: Simplify right side
    65,547.60x = 2,762,959,157.82
  5. Step 5: Solve for x
    x = 2,762,959,157.82/65,547.60
  6. Step 6: Final answer
    x = 42,151.95

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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.