Home / 89,501.88-123,515.28-49,213.56

Finding the Fourth Proportional to 89,501.88, 123,515.28 and 49,213.56

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Solution

The fourth proportional to 89,501.88, 123,515.28 and 49,213.56 is: 67,916.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,501.88 : 123,515.28 = 49,213.56 : x
  2. Step 2: Convert to fraction form
    89,501.88/123,515.28 = 49,213.56/x
  3. Step 3: Cross multiply
    89,501.88x = 123,515.28 × 49,213.56
  4. Step 4: Simplify right side
    89,501.88x = 6,078,626,643.20
  5. Step 5: Solve for x
    x = 6,078,626,643.20/89,501.88
  6. Step 6: Final answer
    x = 67,916.19

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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.