Home / 99,565.74-137,400.89-54,243.54

Finding the Fourth Proportional to 99,565.74, 137,400.89 and 54,243.54

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Solution

The fourth proportional to 99,565.74, 137,400.89 and 54,243.54 is: 74,856.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,565.74 : 137,400.89 = 54,243.54 : x
  2. Step 2: Convert to fraction form
    99,565.74/137,400.89 = 54,243.54/x
  3. Step 3: Cross multiply
    99,565.74x = 137,400.89 × 54,243.54
  4. Step 4: Simplify right side
    99,565.74x = 7,453,110,401.53
  5. Step 5: Solve for x
    x = 7,453,110,401.53/99,565.74
  6. Step 6: Final answer
    x = 74,856.17

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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.