Home / 89,872.10-124,022.30-49,587.56

Finding the Fourth Proportional to 89,872.10, 124,022.30 and 49,587.56

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Solution

The fourth proportional to 89,872.10, 124,022.30 and 49,587.56 is: 68,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,872.10 : 124,022.30 = 49,587.56 : x
  2. Step 2: Convert to fraction form
    89,872.10/124,022.30 = 49,587.56/x
  3. Step 3: Cross multiply
    89,872.10x = 124,022.30 × 49,587.56
  4. Step 4: Simplify right side
    89,872.10x = 6,149,963,242.59
  5. Step 5: Solve for x
    x = 6,149,963,242.59/89,872.10
  6. Step 6: Final answer
    x = 68,430.17

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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.