Home / 83,461.74-125,274.63-61,211.75

Finding the Fourth Proportional to 83,461.74, 125,274.63 and 61,211.75

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Solution

The fourth proportional to 83,461.74, 125,274.63 and 61,211.75 is: 91,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,461.74 : 125,274.63 = 61,211.75 : x
  2. Step 2: Convert to fraction form
    83,461.74/125,274.63 = 61,211.75/x
  3. Step 3: Cross multiply
    83,461.74x = 125,274.63 × 61,211.75
  4. Step 4: Simplify right side
    83,461.74x = 7,668,279,332.90
  5. Step 5: Solve for x
    x = 7,668,279,332.90/83,461.74
  6. Step 6: Final answer
    x = 91,877.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.