Home / 99,829.31-137,763.39-54,507.14

Finding the Fourth Proportional to 99,829.31, 137,763.39 and 54,507.14

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Solution

The fourth proportional to 99,829.31, 137,763.39 and 54,507.14 is: 75,219.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,829.31 : 137,763.39 = 54,507.14 : x
  2. Step 2: Convert to fraction form
    99,829.31/137,763.39 = 54,507.14/x
  3. Step 3: Cross multiply
    99,829.31x = 137,763.39 × 54,507.14
  4. Step 4: Simplify right side
    99,829.31x = 7,509,088,730.01
  5. Step 5: Solve for x
    x = 7,509,088,730.01/99,829.31
  6. Step 6: Final answer
    x = 75,219.28

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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.