Home / 82,729.90-124,044.80-37,129.19

Finding the Fourth Proportional to 82,729.90, 124,044.80 and 37,129.19

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Solution

The fourth proportional to 82,729.90, 124,044.80 and 37,129.19 is: 55,671.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,729.90 : 124,044.80 = 37,129.19 : x
  2. Step 2: Convert to fraction form
    82,729.90/124,044.80 = 37,129.19/x
  3. Step 3: Cross multiply
    82,729.90x = 124,044.80 × 37,129.19
  4. Step 4: Simplify right side
    82,729.90x = 4,605,683,072.18
  5. Step 5: Solve for x
    x = 4,605,683,072.18/82,729.90
  6. Step 6: Final answer
    x = 55,671.33

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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.