Home / 84,055.92-126,088.20-21,726.96

Finding the Fourth Proportional to 84,055.92, 126,088.20 and 21,726.96

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Solution

The fourth proportional to 84,055.92, 126,088.20 and 21,726.96 is: 32,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,055.92 : 126,088.20 = 21,726.96 : x
  2. Step 2: Convert to fraction form
    84,055.92/126,088.20 = 21,726.96/x
  3. Step 3: Cross multiply
    84,055.92x = 126,088.20 × 21,726.96
  4. Step 4: Simplify right side
    84,055.92x = 2,739,513,277.87
  5. Step 5: Solve for x
    x = 2,739,513,277.87/84,055.92
  6. Step 6: Final answer
    x = 32,591.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.