Home / 85,334.31-127,987.29-26,154.09

Finding the Fourth Proportional to 85,334.31, 127,987.29 and 26,154.09

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Solution

The fourth proportional to 85,334.31, 127,987.29 and 26,154.09 is: 39,226.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,334.31 : 127,987.29 = 26,154.09 : x
  2. Step 2: Convert to fraction form
    85,334.31/127,987.29 = 26,154.09/x
  3. Step 3: Cross multiply
    85,334.31x = 127,987.29 × 26,154.09
  4. Step 4: Simplify right side
    85,334.31x = 3,347,391,101.52
  5. Step 5: Solve for x
    x = 3,347,391,101.52/85,334.31
  6. Step 6: Final answer
    x = 39,226.79

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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.