Home / 45,330.68-67,897.56-21,908

Finding the Fourth Proportional to 45,330.68, 67,897.56 and 21,908

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Solution

The fourth proportional to 45,330.68, 67,897.56 and 21,908 is: 32,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,330.68 : 67,897.56 = 21,908 : x
  2. Step 2: Convert to fraction form
    45,330.68/67,897.56 = 21,908/x
  3. Step 3: Cross multiply
    45,330.68x = 67,897.56 × 21,908
  4. Step 4: Simplify right side
    45,330.68x = 1,487,499,744.48
  5. Step 5: Solve for x
    x = 1,487,499,744.48/45,330.68
  6. Step 6: Final answer
    x = 32,814.41

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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.