Home / 61,031.27-91,522.31-18,901.45

Finding the Fourth Proportional to 61,031.27, 91,522.31 and 18,901.45

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Solution

The fourth proportional to 61,031.27, 91,522.31 and 18,901.45 is: 28,344.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,031.27 : 91,522.31 = 18,901.45 : x
  2. Step 2: Convert to fraction form
    61,031.27/91,522.31 = 18,901.45/x
  3. Step 3: Cross multiply
    61,031.27x = 91,522.31 × 18,901.45
  4. Step 4: Simplify right side
    61,031.27x = 1,729,904,386.25
  5. Step 5: Solve for x
    x = 1,729,904,386.25/61,031.27
  6. Step 6: Final answer
    x = 28,344.56

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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.