Home / 84,948.75-127,437.71-25,790.40

Finding the Fourth Proportional to 84,948.75, 127,437.71 and 25,790.40

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Solution

The fourth proportional to 84,948.75, 127,437.71 and 25,790.40 is: 38,690.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,948.75 : 127,437.71 = 25,790.40 : x
  2. Step 2: Convert to fraction form
    84,948.75/127,437.71 = 25,790.40/x
  3. Step 3: Cross multiply
    84,948.75x = 127,437.71 × 25,790.40
  4. Step 4: Simplify right side
    84,948.75x = 3,286,669,387.03
  5. Step 5: Solve for x
    x = 3,286,669,387.03/84,948.75
  6. Step 6: Final answer
    x = 38,690.03

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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.