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Finding the Fourth Proportional to 71,144.31, 98,195.52 and 40,947.07

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Solution

The fourth proportional to 71,144.31, 98,195.52 and 40,947.07 is: 56,516.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,144.31 : 98,195.52 = 40,947.07 : x
  2. Step 2: Convert to fraction form
    71,144.31/98,195.52 = 40,947.07/x
  3. Step 3: Cross multiply
    71,144.31x = 98,195.52 × 40,947.07
  4. Step 4: Simplify right side
    71,144.31x = 4,020,818,831.13
  5. Step 5: Solve for x
    x = 4,020,818,831.13/71,144.31
  6. Step 6: Final answer
    x = 56,516.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.