Home / 90,412.16-124,769.91-52,179.65

Finding the Fourth Proportional to 90,412.16, 124,769.91 and 52,179.65

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Solution

The fourth proportional to 90,412.16, 124,769.91 and 52,179.65 is: 72,008.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,412.16 : 124,769.91 = 52,179.65 : x
  2. Step 2: Convert to fraction form
    90,412.16/124,769.91 = 52,179.65/x
  3. Step 3: Cross multiply
    90,412.16x = 124,769.91 × 52,179.65
  4. Step 4: Simplify right side
    90,412.16x = 6,510,449,610.48
  5. Step 5: Solve for x
    x = 6,510,449,610.48/90,412.16
  6. Step 6: Final answer
    x = 72,008.57

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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.