Home / 89,981.55-124,175.39-51,217.48

Finding the Fourth Proportional to 89,981.55, 124,175.39 and 51,217.48

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Solution

The fourth proportional to 89,981.55, 124,175.39 and 51,217.48 is: 70,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.55 : 124,175.39 = 51,217.48 : x
  2. Step 2: Convert to fraction form
    89,981.55/124,175.39 = 51,217.48/x
  3. Step 3: Cross multiply
    89,981.55x = 124,175.39 × 51,217.48
  4. Step 4: Simplify right side
    89,981.55x = 6,359,949,987.29
  5. Step 5: Solve for x
    x = 6,359,949,987.29/89,981.55
  6. Step 6: Final answer
    x = 70,680.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.