Home / 89,782.89-123,901.25-49,498.13

Finding the Fourth Proportional to 89,782.89, 123,901.25 and 49,498.13

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Solution

The fourth proportional to 89,782.89, 123,901.25 and 49,498.13 is: 68,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,782.89 : 123,901.25 = 49,498.13 : x
  2. Step 2: Convert to fraction form
    89,782.89/123,901.25 = 49,498.13/x
  3. Step 3: Cross multiply
    89,782.89x = 123,901.25 × 49,498.13
  4. Step 4: Simplify right side
    89,782.89x = 6,132,880,179.66
  5. Step 5: Solve for x
    x = 6,132,880,179.66/89,782.89
  6. Step 6: Final answer
    x = 68,307.89

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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.