Home / 89,864.70-124,012.43-49,578.79

Finding the Fourth Proportional to 89,864.70, 124,012.43 and 49,578.79

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Solution

The fourth proportional to 89,864.70, 124,012.43 and 49,578.79 is: 68,418.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,864.70 : 124,012.43 = 49,578.79 : x
  2. Step 2: Convert to fraction form
    89,864.70/124,012.43 = 49,578.79/x
  3. Step 3: Cross multiply
    89,864.70x = 124,012.43 × 49,578.79
  4. Step 4: Simplify right side
    89,864.70x = 6,148,386,224.36
  5. Step 5: Solve for x
    x = 6,148,386,224.36/89,864.70
  6. Step 6: Final answer
    x = 68,418.26

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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.