Home / 89,979.12-124,096.32-67,371.48

Finding the Fourth Proportional to 89,979.12, 124,096.32 and 67,371.48

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Solution

The fourth proportional to 89,979.12, 124,096.32 and 67,371.48 is: 92,916.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,979.12 : 124,096.32 = 67,371.48 : x
  2. Step 2: Convert to fraction form
    89,979.12/124,096.32 = 67,371.48/x
  3. Step 3: Cross multiply
    89,979.12x = 124,096.32 × 67,371.48
  4. Step 4: Simplify right side
    89,979.12x = 8,360,552,740.95
  5. Step 5: Solve for x
    x = 8,360,552,740.95/89,979.12
  6. Step 6: Final answer
    x = 92,916.59

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1.5x scale

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.