Home / 90,105.65-124,346.16-49,270.62

Finding the Fourth Proportional to 90,105.65, 124,346.16 and 49,270.62

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Solution

The fourth proportional to 90,105.65, 124,346.16 and 49,270.62 is: 67,993.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,105.65 : 124,346.16 = 49,270.62 : x
  2. Step 2: Convert to fraction form
    90,105.65/124,346.16 = 49,270.62/x
  3. Step 3: Cross multiply
    90,105.65x = 124,346.16 × 49,270.62
  4. Step 4: Simplify right side
    90,105.65x = 6,126,612,397.82
  5. Step 5: Solve for x
    x = 6,126,612,397.82/90,105.65
  6. Step 6: Final answer
    x = 67,993.66

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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.