Home / 87,074.64-130,630.68-45,510.48

Finding the Fourth Proportional to 87,074.64, 130,630.68 and 45,510.48

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Solution

The fourth proportional to 87,074.64, 130,630.68 and 45,510.48 is: 68,275.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,074.64 : 130,630.68 = 45,510.48 : x
  2. Step 2: Convert to fraction form
    87,074.64/130,630.68 = 45,510.48/x
  3. Step 3: Cross multiply
    87,074.64x = 130,630.68 × 45,510.48
  4. Step 4: Simplify right side
    87,074.64x = 5,945,064,949.53
  5. Step 5: Solve for x
    x = 5,945,064,949.53/87,074.64
  6. Step 6: Final answer
    x = 68,275.50

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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.