Home / 90,726.56-125,209.65-54,429.36

Finding the Fourth Proportional to 90,726.56, 125,209.65 and 54,429.36

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Solution

The fourth proportional to 90,726.56, 125,209.65 and 54,429.36 is: 75,116.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,726.56 : 125,209.65 = 54,429.36 : x
  2. Step 2: Convert to fraction form
    90,726.56/125,209.65 = 54,429.36/x
  3. Step 3: Cross multiply
    90,726.56x = 125,209.65 × 54,429.36
  4. Step 4: Simplify right side
    90,726.56x = 6,815,081,332.22
  5. Step 5: Solve for x
    x = 6,815,081,332.22/90,726.56
  6. Step 6: Final answer
    x = 75,116.72

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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.