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Finding the Fourth Proportional to 65,484.80, 98,145.02 and 28,000.79

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Solution

The fourth proportional to 65,484.80, 98,145.02 and 28,000.79 is: 41,966.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,484.80 : 98,145.02 = 28,000.79 : x
  2. Step 2: Convert to fraction form
    65,484.80/98,145.02 = 28,000.79/x
  3. Step 3: Cross multiply
    65,484.80x = 98,145.02 × 28,000.79
  4. Step 4: Simplify right side
    65,484.80x = 2,748,137,884.38
  5. Step 5: Solve for x
    x = 2,748,137,884.38/65,484.80
  6. Step 6: Final answer
    x = 41,966.04

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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.