Home / 89,925.12-124,072.56-58,082.40

Finding the Fourth Proportional to 89,925.12, 124,072.56 and 58,082.40

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Solution

The fourth proportional to 89,925.12, 124,072.56 and 58,082.40 is: 80,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,925.12 : 124,072.56 = 58,082.40 : x
  2. Step 2: Convert to fraction form
    89,925.12/124,072.56 = 58,082.40/x
  3. Step 3: Cross multiply
    89,925.12x = 124,072.56 × 58,082.40
  4. Step 4: Simplify right side
    89,925.12x = 7,206,432,058.94
  5. Step 5: Solve for x
    x = 7,206,432,058.94/89,925.12
  6. Step 6: Final answer
    x = 80,138.14

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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.