Home / 84,944.72-127,423.08-25,785.20

Finding the Fourth Proportional to 84,944.72, 127,423.08 and 25,785.20

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Solution

The fourth proportional to 84,944.72, 127,423.08 and 25,785.20 is: 38,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,944.72 : 127,423.08 = 25,785.20 : x
  2. Step 2: Convert to fraction form
    84,944.72/127,423.08 = 25,785.20/x
  3. Step 3: Cross multiply
    84,944.72x = 127,423.08 × 25,785.20
  4. Step 4: Simplify right side
    84,944.72x = 3,285,629,602.42
  5. Step 5: Solve for x
    x = 3,285,629,602.42/84,944.72
  6. Step 6: Final answer
    x = 38,679.62

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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.