Home / 56,053.28-77,353.92-30,902.72

Finding the Fourth Proportional to 56,053.28, 77,353.92 and 30,902.72

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Solution

The fourth proportional to 56,053.28, 77,353.92 and 30,902.72 is: 42,645.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,053.28 : 77,353.92 = 30,902.72 : x
  2. Step 2: Convert to fraction form
    56,053.28/77,353.92 = 30,902.72/x
  3. Step 3: Cross multiply
    56,053.28x = 77,353.92 × 30,902.72
  4. Step 4: Simplify right side
    56,053.28x = 2,390,446,530.66
  5. Step 5: Solve for x
    x = 2,390,446,530.66/56,053.28
  6. Step 6: Final answer
    x = 42,645.97

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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.