Home / 89,447.95-123,449.84-57,709.18

Finding the Fourth Proportional to 89,447.95, 123,449.84 and 57,709.18

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Solution

The fourth proportional to 89,447.95, 123,449.84 and 57,709.18 is: 79,646.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,447.95 : 123,449.84 = 57,709.18 : x
  2. Step 2: Convert to fraction form
    89,447.95/123,449.84 = 57,709.18/x
  3. Step 3: Cross multiply
    89,447.95x = 123,449.84 × 57,709.18
  4. Step 4: Simplify right side
    89,447.95x = 7,124,189,037.53
  5. Step 5: Solve for x
    x = 7,124,189,037.53/89,447.95
  6. Step 6: Final answer
    x = 79,646.20

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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.