Home / 90,830.92-125,275.66-59,010.08

Finding the Fourth Proportional to 90,830.92, 125,275.66 and 59,010.08

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Solution

The fourth proportional to 90,830.92, 125,275.66 and 59,010.08 is: 81,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,830.92 : 125,275.66 = 59,010.08 : x
  2. Step 2: Convert to fraction form
    90,830.92/125,275.66 = 59,010.08/x
  3. Step 3: Cross multiply
    90,830.92x = 125,275.66 × 59,010.08
  4. Step 4: Simplify right side
    90,830.92x = 7,392,526,718.65
  5. Step 5: Solve for x
    x = 7,392,526,718.65/90,830.92
  6. Step 6: Final answer
    x = 81,387.78

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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.