Home / 84,903.12-127,377.72-25,740.72

Finding the Fourth Proportional to 84,903.12, 127,377.72 and 25,740.72

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Solution

The fourth proportional to 84,903.12, 127,377.72 and 25,740.72 is: 38,618.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,903.12 : 127,377.72 = 25,740.72 : x
  2. Step 2: Convert to fraction form
    84,903.12/127,377.72 = 25,740.72/x
  3. Step 3: Cross multiply
    84,903.12x = 127,377.72 × 25,740.72
  4. Step 4: Simplify right side
    84,903.12x = 3,278,794,224.76
  5. Step 5: Solve for x
    x = 3,278,794,224.76/84,903.12
  6. Step 6: Final answer
    x = 38,618.07

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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.