Home / 87,176.52-120,329.28-51,378.12

Finding the Fourth Proportional to 87,176.52, 120,329.28 and 51,378.12

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Solution

The fourth proportional to 87,176.52, 120,329.28 and 51,378.12 is: 70,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,176.52 : 120,329.28 = 51,378.12 : x
  2. Step 2: Convert to fraction form
    87,176.52/120,329.28 = 51,378.12/x
  3. Step 3: Cross multiply
    87,176.52x = 120,329.28 × 51,378.12
  4. Step 4: Simplify right side
    87,176.52x = 6,182,292,187.35
  5. Step 5: Solve for x
    x = 6,182,292,187.35/87,176.52
  6. Step 6: Final answer
    x = 70,916.94

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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.