Home / 84,749.85-127,124.78-21,569.85

Finding the Fourth Proportional to 84,749.85, 127,124.78 and 21,569.85

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Solution

The fourth proportional to 84,749.85, 127,124.78 and 21,569.85 is: 32,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,749.85 : 127,124.78 = 21,569.85 : x
  2. Step 2: Convert to fraction form
    84,749.85/127,124.78 = 21,569.85/x
  3. Step 3: Cross multiply
    84,749.85x = 127,124.78 × 21,569.85
  4. Step 4: Simplify right side
    84,749.85x = 2,742,062,328.03
  5. Step 5: Solve for x
    x = 2,742,062,328.03/84,749.85
  6. Step 6: Final answer
    x = 32,354.78

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Similar ratio
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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.