Home / 83,423.94-115,135.13-47,126.91

Finding the Fourth Proportional to 83,423.94, 115,135.13 and 47,126.91

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Solution

The fourth proportional to 83,423.94, 115,135.13 and 47,126.91 is: 65,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,423.94 : 115,135.13 = 47,126.91 : x
  2. Step 2: Convert to fraction form
    83,423.94/115,135.13 = 47,126.91/x
  3. Step 3: Cross multiply
    83,423.94x = 115,135.13 × 47,126.91
  4. Step 4: Simplify right side
    83,423.94x = 5,425,963,458.92
  5. Step 5: Solve for x
    x = 5,425,963,458.92/83,423.94
  6. Step 6: Final answer
    x = 65,040.85

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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.