Home / 65,552.60-90,439.26-38,681.66

Finding the Fourth Proportional to 65,552.60, 90,439.26 and 38,681.66

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Solution

The fourth proportional to 65,552.60, 90,439.26 and 38,681.66 is: 53,366.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,552.60 : 90,439.26 = 38,681.66 : x
  2. Step 2: Convert to fraction form
    65,552.60/90,439.26 = 38,681.66/x
  3. Step 3: Cross multiply
    65,552.60x = 90,439.26 × 38,681.66
  4. Step 4: Simplify right side
    65,552.60x = 3,498,340,705.97
  5. Step 5: Solve for x
    x = 3,498,340,705.97/65,552.60
  6. Step 6: Final answer
    x = 53,366.93

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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.