Home / 71,921.10-99,248.82-45,078.10

Finding the Fourth Proportional to 71,921.10, 99,248.82 and 45,078.10

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Solution

The fourth proportional to 71,921.10, 99,248.82 and 45,078.10 is: 62,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,921.10 : 99,248.82 = 45,078.10 : x
  2. Step 2: Convert to fraction form
    71,921.10/99,248.82 = 45,078.10/x
  3. Step 3: Cross multiply
    71,921.10x = 99,248.82 × 45,078.10
  4. Step 4: Simplify right side
    71,921.10x = 4,473,948,232.84
  5. Step 5: Solve for x
    x = 4,473,948,232.84/71,921.10
  6. Step 6: Final answer
    x = 62,206.34

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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.