Home / 87,117.27-120,258.53-58,861.23

Finding the Fourth Proportional to 87,117.27, 120,258.53 and 58,861.23

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Solution

The fourth proportional to 87,117.27, 120,258.53 and 58,861.23 is: 81,253.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,117.27 : 120,258.53 = 58,861.23 : x
  2. Step 2: Convert to fraction form
    87,117.27/120,258.53 = 58,861.23/x
  3. Step 3: Cross multiply
    87,117.27x = 120,258.53 × 58,861.23
  4. Step 4: Simplify right side
    87,117.27x = 7,078,564,993.79
  5. Step 5: Solve for x
    x = 7,078,564,993.79/87,117.27
  6. Step 6: Final answer
    x = 81,253.29

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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.