Home / 89,981.72-124,174.78-52,258.40

Finding the Fourth Proportional to 89,981.72, 124,174.78 and 52,258.40

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Solution

The fourth proportional to 89,981.72, 124,174.78 and 52,258.40 is: 72,116.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,981.72 : 124,174.78 = 52,258.40 : x
  2. Step 2: Convert to fraction form
    89,981.72/124,174.78 = 52,258.40/x
  3. Step 3: Cross multiply
    89,981.72x = 124,174.78 × 52,258.40
  4. Step 4: Simplify right side
    89,981.72x = 6,489,175,037.29
  5. Step 5: Solve for x
    x = 6,489,175,037.29/89,981.72
  6. Step 6: Final answer
    x = 72,116.59

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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.