Home / 99,683.16-137,562.30-54,971.16

Finding the Fourth Proportional to 99,683.16, 137,562.30 and 54,971.16

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Solution

The fourth proportional to 99,683.16, 137,562.30 and 54,971.16 is: 75,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,683.16 : 137,562.30 = 54,971.16 : x
  2. Step 2: Convert to fraction form
    99,683.16/137,562.30 = 54,971.16/x
  3. Step 3: Cross multiply
    99,683.16x = 137,562.30 × 54,971.16
  4. Step 4: Simplify right side
    99,683.16x = 7,561,959,203.27
  5. Step 5: Solve for x
    x = 7,561,959,203.27/99,683.16
  6. Step 6: Final answer
    x = 75,859.95

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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.