Home / 99,672.08-137,547.56-57,233.36

Finding the Fourth Proportional to 99,672.08, 137,547.56 and 57,233.36

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Solution

The fourth proportional to 99,672.08, 137,547.56 and 57,233.36 is: 78,982.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,672.08 : 137,547.56 = 57,233.36 : x
  2. Step 2: Convert to fraction form
    99,672.08/137,547.56 = 57,233.36/x
  3. Step 3: Cross multiply
    99,672.08x = 137,547.56 × 57,233.36
  4. Step 4: Simplify right side
    99,672.08x = 7,872,309,018.60
  5. Step 5: Solve for x
    x = 7,872,309,018.60/99,672.08
  6. Step 6: Final answer
    x = 78,982.09

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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.