Home / 84,830.12-127,251.30-25,670.45

Finding the Fourth Proportional to 84,830.12, 127,251.30 and 25,670.45

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Solution

The fourth proportional to 84,830.12, 127,251.30 and 25,670.45 is: 38,507.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,830.12 : 127,251.30 = 25,670.45 : x
  2. Step 2: Convert to fraction form
    84,830.12/127,251.30 = 25,670.45/x
  3. Step 3: Cross multiply
    84,830.12x = 127,251.30 × 25,670.45
  4. Step 4: Simplify right side
    84,830.12x = 3,266,598,134.09
  5. Step 5: Solve for x
    x = 3,266,598,134.09/84,830.12
  6. Step 6: Final answer
    x = 38,507.53

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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.