Home / 48,579.11-67,039.32-28,165.15

Finding the Fourth Proportional to 48,579.11, 67,039.32 and 28,165.15

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Solution

The fourth proportional to 48,579.11, 67,039.32 and 28,165.15 is: 38,867.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,579.11 : 67,039.32 = 28,165.15 : x
  2. Step 2: Convert to fraction form
    48,579.11/67,039.32 = 28,165.15/x
  3. Step 3: Cross multiply
    48,579.11x = 67,039.32 × 28,165.15
  4. Step 4: Simplify right side
    48,579.11x = 1,888,172,503.70
  5. Step 5: Solve for x
    x = 1,888,172,503.70/48,579.11
  6. Step 6: Final answer
    x = 38,867.99

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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.