Home / 56,089.68-84,122.60-21,031.92

Finding the Fourth Proportional to 56,089.68, 84,122.60 and 21,031.92

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Solution

The fourth proportional to 56,089.68, 84,122.60 and 21,031.92 is: 31,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,089.68 : 84,122.60 = 21,031.92 : x
  2. Step 2: Convert to fraction form
    56,089.68/84,122.60 = 21,031.92/x
  3. Step 3: Cross multiply
    56,089.68x = 84,122.60 × 21,031.92
  4. Step 4: Simplify right side
    56,089.68x = 1,769,259,793.39
  5. Step 5: Solve for x
    x = 1,769,259,793.39/56,089.68
  6. Step 6: Final answer
    x = 31,543.41

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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.