Home / 87,035.12-130,616.76-39,703.76

Finding the Fourth Proportional to 87,035.12, 130,616.76 and 39,703.76

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Solution

The fourth proportional to 87,035.12, 130,616.76 and 39,703.76 is: 59,584.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,035.12 : 130,616.76 = 39,703.76 : x
  2. Step 2: Convert to fraction form
    87,035.12/130,616.76 = 39,703.76/x
  3. Step 3: Cross multiply
    87,035.12x = 130,616.76 × 39,703.76
  4. Step 4: Simplify right side
    87,035.12x = 5,185,976,491.02
  5. Step 5: Solve for x
    x = 5,185,976,491.02/87,035.12
  6. Step 6: Final answer
    x = 59,584.87

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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.