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Finding the Fourth Proportional to 87,472.56, 130,911.54 and 65,230.80

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Solution

The fourth proportional to 87,472.56, 130,911.54 and 65,230.80 is: 97,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,472.56 : 130,911.54 = 65,230.80 : x
  2. Step 2: Convert to fraction form
    87,472.56/130,911.54 = 65,230.80/x
  3. Step 3: Cross multiply
    87,472.56x = 130,911.54 × 65,230.80
  4. Step 4: Simplify right side
    87,472.56x = 8,539,464,483.43
  5. Step 5: Solve for x
    x = 8,539,464,483.43/87,472.56
  6. Step 6: Final answer
    x = 97,624.49

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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.