Home / 89,983.08-124,229.70-61,730.28

Finding the Fourth Proportional to 89,983.08, 124,229.70 and 61,730.28

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Solution

The fourth proportional to 89,983.08, 124,229.70 and 61,730.28 is: 85,224.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,983.08 : 124,229.70 = 61,730.28 : x
  2. Step 2: Convert to fraction form
    89,983.08/124,229.70 = 61,730.28/x
  3. Step 3: Cross multiply
    89,983.08x = 124,229.70 × 61,730.28
  4. Step 4: Simplify right side
    89,983.08x = 7,668,734,165.32
  5. Step 5: Solve for x
    x = 7,668,734,165.32/89,983.08
  6. Step 6: Final answer
    x = 85,224.18

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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.