Home / 90,013.52-124,225.92-49,730.80

Finding the Fourth Proportional to 90,013.52, 124,225.92 and 49,730.80

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Solution

The fourth proportional to 90,013.52, 124,225.92 and 49,730.80 is: 68,632.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,013.52 : 124,225.92 = 49,730.80 : x
  2. Step 2: Convert to fraction form
    90,013.52/124,225.92 = 49,730.80/x
  3. Step 3: Cross multiply
    90,013.52x = 124,225.92 × 49,730.80
  4. Step 4: Simplify right side
    90,013.52x = 6,177,854,382.34
  5. Step 5: Solve for x
    x = 6,177,854,382.34/90,013.52
  6. Step 6: Final answer
    x = 68,632.52

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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.