Home / 84,842.20-127,321.56-29,438.20

Finding the Fourth Proportional to 84,842.20, 127,321.56 and 29,438.20

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Solution

The fourth proportional to 84,842.20, 127,321.56 and 29,438.20 is: 44,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,842.20 : 127,321.56 = 29,438.20 : x
  2. Step 2: Convert to fraction form
    84,842.20/127,321.56 = 29,438.20/x
  3. Step 3: Cross multiply
    84,842.20x = 127,321.56 × 29,438.20
  4. Step 4: Simplify right side
    84,842.20x = 3,748,117,547.59
  5. Step 5: Solve for x
    x = 3,748,117,547.59/84,842.20
  6. Step 6: Final answer
    x = 44,177.51

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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.