Home / 42,239.49-63,381.24-30,648.39

Finding the Fourth Proportional to 42,239.49, 63,381.24 and 30,648.39

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Solution

The fourth proportional to 42,239.49, 63,381.24 and 30,648.39 is: 45,988.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,239.49 : 63,381.24 = 30,648.39 : x
  2. Step 2: Convert to fraction form
    42,239.49/63,381.24 = 30,648.39/x
  3. Step 3: Cross multiply
    42,239.49x = 63,381.24 × 30,648.39
  4. Step 4: Simplify right side
    42,239.49x = 1,942,532,962.20
  5. Step 5: Solve for x
    x = 1,942,532,962.20/42,239.49
  6. Step 6: Final answer
    x = 45,988.55

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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.