Home / 90,105.10-124,341.90-49,270.18

Finding the Fourth Proportional to 90,105.10, 124,341.90 and 49,270.18

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Solution

The fourth proportional to 90,105.10, 124,341.90 and 49,270.18 is: 67,991.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,105.10 : 124,341.90 = 49,270.18 : x
  2. Step 2: Convert to fraction form
    90,105.10/124,341.90 = 49,270.18/x
  3. Step 3: Cross multiply
    90,105.10x = 124,341.90 × 49,270.18
  4. Step 4: Simplify right side
    90,105.10x = 6,126,346,926.48
  5. Step 5: Solve for x
    x = 6,126,346,926.48/90,105.10
  6. Step 6: Final answer
    x = 67,991.13

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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.