Home / 99,281.09-137,008.80-53,959.18

Finding the Fourth Proportional to 99,281.09, 137,008.80 and 53,959.18

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Solution

The fourth proportional to 99,281.09, 137,008.80 and 53,959.18 is: 74,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,281.09 : 137,008.80 = 53,959.18 : x
  2. Step 2: Convert to fraction form
    99,281.09/137,008.80 = 53,959.18/x
  3. Step 3: Cross multiply
    99,281.09x = 137,008.80 × 53,959.18
  4. Step 4: Simplify right side
    99,281.09x = 7,392,881,545.94
  5. Step 5: Solve for x
    x = 7,392,881,545.94/99,281.09
  6. Step 6: Final answer
    x = 74,464.15

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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.