Home / 91,689.48-137,536.14-29,359.80

Finding the Fourth Proportional to 91,689.48, 137,536.14 and 29,359.80

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Solution

The fourth proportional to 91,689.48, 137,536.14 and 29,359.80 is: 44,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,689.48 : 137,536.14 = 29,359.80 : x
  2. Step 2: Convert to fraction form
    91,689.48/137,536.14 = 29,359.80/x
  3. Step 3: Cross multiply
    91,689.48x = 137,536.14 × 29,359.80
  4. Step 4: Simplify right side
    91,689.48x = 4,038,033,563.17
  5. Step 5: Solve for x
    x = 4,038,033,563.17/91,689.48
  6. Step 6: Final answer
    x = 44,040.31

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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.