Home / 87,196.40-130,794.64-40,423.76

Finding the Fourth Proportional to 87,196.40, 130,794.64 and 40,423.76

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Solution

The fourth proportional to 87,196.40, 130,794.64 and 40,423.76 is: 60,635.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,196.40 : 130,794.64 = 40,423.76 : x
  2. Step 2: Convert to fraction form
    87,196.40/130,794.64 = 40,423.76/x
  3. Step 3: Cross multiply
    87,196.40x = 130,794.64 × 40,423.76
  4. Step 4: Simplify right side
    87,196.40x = 5,287,211,136.65
  5. Step 5: Solve for x
    x = 5,287,211,136.65/87,196.40
  6. Step 6: Final answer
    x = 60,635.66

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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.