Home / 99,531.99-137,352.51-54,209.25

Finding the Fourth Proportional to 99,531.99, 137,352.51 and 54,209.25

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Solution

The fourth proportional to 99,531.99, 137,352.51 and 54,209.25 is: 74,807.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,531.99 : 137,352.51 = 54,209.25 : x
  2. Step 2: Convert to fraction form
    99,531.99/137,352.51 = 54,209.25/x
  3. Step 3: Cross multiply
    99,531.99x = 137,352.51 × 54,209.25
  4. Step 4: Simplify right side
    99,531.99x = 7,445,776,552.72
  5. Step 5: Solve for x
    x = 7,445,776,552.72/99,531.99
  6. Step 6: Final answer
    x = 74,807.87

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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.