Home / 89,649.24-123,711-49,361.40

Finding the Fourth Proportional to 89,649.24, 123,711 and 49,361.40

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Solution

The fourth proportional to 89,649.24, 123,711 and 49,361.40 is: 68,116.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,649.24 : 123,711 = 49,361.40 : x
  2. Step 2: Convert to fraction form
    89,649.24/123,711 = 49,361.40/x
  3. Step 3: Cross multiply
    89,649.24x = 123,711 × 49,361.40
  4. Step 4: Simplify right side
    89,649.24x = 6,106,548,155.40
  5. Step 5: Solve for x
    x = 6,106,548,155.40/89,649.24
  6. Step 6: Final answer
    x = 68,116.01

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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.