Home / 48,439.95-66,855.17-28,296.78

Finding the Fourth Proportional to 48,439.95, 66,855.17 and 28,296.78

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Solution

The fourth proportional to 48,439.95, 66,855.17 and 28,296.78 is: 39,054.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,439.95 : 66,855.17 = 28,296.78 : x
  2. Step 2: Convert to fraction form
    48,439.95/66,855.17 = 28,296.78/x
  3. Step 3: Cross multiply
    48,439.95x = 66,855.17 × 28,296.78
  4. Step 4: Simplify right side
    48,439.95x = 1,891,785,895.87
  5. Step 5: Solve for x
    x = 1,891,785,895.87/48,439.95
  6. Step 6: Final answer
    x = 39,054.25

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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.