Home / 99,015.28-136,649.73-54,311.92

Finding the Fourth Proportional to 99,015.28, 136,649.73 and 54,311.92

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Solution

The fourth proportional to 99,015.28, 136,649.73 and 54,311.92 is: 74,955.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.28 : 136,649.73 = 54,311.92 : x
  2. Step 2: Convert to fraction form
    99,015.28/136,649.73 = 54,311.92/x
  3. Step 3: Cross multiply
    99,015.28x = 136,649.73 × 54,311.92
  4. Step 4: Simplify right side
    99,015.28x = 7,421,709,374.59
  5. Step 5: Solve for x
    x = 7,421,709,374.59/99,015.28
  6. Step 6: Final answer
    x = 74,955.19

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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.