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Finding the Fourth Proportional to 90,460.63, 124,819.53 and 54,626.65

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Solution

The fourth proportional to 90,460.63, 124,819.53 and 54,626.65 is: 75,375.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,460.63 : 124,819.53 = 54,626.65 : x
  2. Step 2: Convert to fraction form
    90,460.63/124,819.53 = 54,626.65/x
  3. Step 3: Cross multiply
    90,460.63x = 124,819.53 × 54,626.65
  4. Step 4: Simplify right side
    90,460.63x = 6,818,472,778.47
  5. Step 5: Solve for x
    x = 6,818,472,778.47/90,460.63
  6. Step 6: Final answer
    x = 75,375.03

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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.