Home / 83,657.10-125,315.55-51,969.90

Finding the Fourth Proportional to 83,657.10, 125,315.55 and 51,969.90

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Solution

The fourth proportional to 83,657.10, 125,315.55 and 51,969.90 is: 77,849.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,657.10 : 125,315.55 = 51,969.90 : x
  2. Step 2: Convert to fraction form
    83,657.10/125,315.55 = 51,969.90/x
  3. Step 3: Cross multiply
    83,657.10x = 125,315.55 × 51,969.90
  4. Step 4: Simplify right side
    83,657.10x = 6,512,636,601.95
  5. Step 5: Solve for x
    x = 6,512,636,601.95/83,657.10
  6. Step 6: Final answer
    x = 77,849.18

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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.