Home / 89,515.25-123,532.55-51,278.14

Finding the Fourth Proportional to 89,515.25, 123,532.55 and 51,278.14

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Solution

The fourth proportional to 89,515.25, 123,532.55 and 51,278.14 is: 70,764.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,515.25 : 123,532.55 = 51,278.14 : x
  2. Step 2: Convert to fraction form
    89,515.25/123,532.55 = 51,278.14/x
  3. Step 3: Cross multiply
    89,515.25x = 123,532.55 × 51,278.14
  4. Step 4: Simplify right side
    89,515.25x = 6,334,518,828.23
  5. Step 5: Solve for x
    x = 6,334,518,828.23/89,515.25
  6. Step 6: Final answer
    x = 70,764.69

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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.