Home / 90,130.48-124,375.04-49,841.84

Finding the Fourth Proportional to 90,130.48, 124,375.04 and 49,841.84

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Solution

The fourth proportional to 90,130.48, 124,375.04 and 49,841.84 is: 68,778.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,130.48 : 124,375.04 = 49,841.84 : x
  2. Step 2: Convert to fraction form
    90,130.48/124,375.04 = 49,841.84/x
  3. Step 3: Cross multiply
    90,130.48x = 124,375.04 × 49,841.84
  4. Step 4: Simplify right side
    90,130.48x = 6,199,080,843.67
  5. Step 5: Solve for x
    x = 6,199,080,843.67/90,130.48
  6. Step 6: Final answer
    x = 68,778.96

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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.