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Finding the Fourth Proportional to 65,513.68, 98,293.56 and 28,572.88

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Solution

The fourth proportional to 65,513.68, 98,293.56 and 28,572.88 is: 42,869.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,513.68 : 98,293.56 = 28,572.88 : x
  2. Step 2: Convert to fraction form
    65,513.68/98,293.56 = 28,572.88/x
  3. Step 3: Cross multiply
    65,513.68x = 98,293.56 × 28,572.88
  4. Step 4: Simplify right side
    65,513.68x = 2,808,530,094.65
  5. Step 5: Solve for x
    x = 2,808,530,094.65/65,513.68
  6. Step 6: Final answer
    x = 42,869.37

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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.