Home / 90,077.83-124,306.05-49,790.70

Finding the Fourth Proportional to 90,077.83, 124,306.05 and 49,790.70

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Solution

The fourth proportional to 90,077.83, 124,306.05 and 49,790.70 is: 68,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,077.83 : 124,306.05 = 49,790.70 : x
  2. Step 2: Convert to fraction form
    90,077.83/124,306.05 = 49,790.70/x
  3. Step 3: Cross multiply
    90,077.83x = 124,306.05 × 49,790.70
  4. Step 4: Simplify right side
    90,077.83x = 6,189,285,243.74
  5. Step 5: Solve for x
    x = 6,189,285,243.74/90,077.83
  6. Step 6: Final answer
    x = 68,710.42

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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.