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Finding the Fourth Proportional to 65,703.72, 98,561.02 and 28,264.70

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Solution

The fourth proportional to 65,703.72, 98,561.02 and 28,264.70 is: 42,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,703.72 : 98,561.02 = 28,264.70 : x
  2. Step 2: Convert to fraction form
    65,703.72/98,561.02 = 28,264.70/x
  3. Step 3: Cross multiply
    65,703.72x = 98,561.02 × 28,264.70
  4. Step 4: Simplify right side
    65,703.72x = 2,785,797,661.99
  5. Step 5: Solve for x
    x = 2,785,797,661.99/65,703.72
  6. Step 6: Final answer
    x = 42,399.39

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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.