Home / 74,732.05-103,125.06-42,031.36

Finding the Fourth Proportional to 74,732.05, 103,125.06 and 42,031.36

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Solution

The fourth proportional to 74,732.05, 103,125.06 and 42,031.36 is: 58,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,732.05 : 103,125.06 = 42,031.36 : x
  2. Step 2: Convert to fraction form
    74,732.05/103,125.06 = 42,031.36/x
  3. Step 3: Cross multiply
    74,732.05x = 103,125.06 × 42,031.36
  4. Step 4: Simplify right side
    74,732.05x = 4,334,486,822.61
  5. Step 5: Solve for x
    x = 4,334,486,822.61/74,732.05
  6. Step 6: Final answer
    x = 58,000.37

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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.