Home / 89,785.40-123,904.14-48,949.28

Finding the Fourth Proportional to 89,785.40, 123,904.14 and 48,949.28

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Solution

The fourth proportional to 89,785.40, 123,904.14 and 48,949.28 is: 67,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,785.40 : 123,904.14 = 48,949.28 : x
  2. Step 2: Convert to fraction form
    89,785.40/123,904.14 = 48,949.28/x
  3. Step 3: Cross multiply
    89,785.40x = 123,904.14 × 48,949.28
  4. Step 4: Simplify right side
    89,785.40x = 6,065,018,442.02
  5. Step 5: Solve for x
    x = 6,065,018,442.02/89,785.40
  6. Step 6: Final answer
    x = 67,550.16

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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.