Home / 87,384.68-130,795.10-45,206.69

Finding the Fourth Proportional to 87,384.68, 130,795.10 and 45,206.69

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Solution

The fourth proportional to 87,384.68, 130,795.10 and 45,206.69 is: 67,664.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,384.68 : 130,795.10 = 45,206.69 : x
  2. Step 2: Convert to fraction form
    87,384.68/130,795.10 = 45,206.69/x
  3. Step 3: Cross multiply
    87,384.68x = 130,795.10 × 45,206.69
  4. Step 4: Simplify right side
    87,384.68x = 5,912,812,659.21
  5. Step 5: Solve for x
    x = 5,912,812,659.21/87,384.68
  6. Step 6: Final answer
    x = 67,664.18

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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.