Home / 84,979.72-127,468.50-38,199.52

Finding the Fourth Proportional to 84,979.72, 127,468.50 and 38,199.52

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Solution

The fourth proportional to 84,979.72, 127,468.50 and 38,199.52 is: 57,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,979.72 : 127,468.50 = 38,199.52 : x
  2. Step 2: Convert to fraction form
    84,979.72/127,468.50 = 38,199.52/x
  3. Step 3: Cross multiply
    84,979.72x = 127,468.50 × 38,199.52
  4. Step 4: Simplify right side
    84,979.72x = 4,869,235,515.12
  5. Step 5: Solve for x
    x = 4,869,235,515.12/84,979.72
  6. Step 6: Final answer
    x = 57,298.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.