Home / 85,274.20-127,920.90-26,109.40

Finding the Fourth Proportional to 85,274.20, 127,920.90 and 26,109.40

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Solution

The fourth proportional to 85,274.20, 127,920.90 and 26,109.40 is: 39,167.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,274.20 : 127,920.90 = 26,109.40 : x
  2. Step 2: Convert to fraction form
    85,274.20/127,920.90 = 26,109.40/x
  3. Step 3: Cross multiply
    85,274.20x = 127,920.90 × 26,109.40
  4. Step 4: Simplify right side
    85,274.20x = 3,339,937,946.46
  5. Step 5: Solve for x
    x = 3,339,937,946.46/85,274.20
  6. Step 6: Final answer
    x = 39,167.04

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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.