Home / 69,112.98-95,380.74-38,901.20

Finding the Fourth Proportional to 69,112.98, 95,380.74 and 38,901.20

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Solution

The fourth proportional to 69,112.98, 95,380.74 and 38,901.20 is: 53,686.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,112.98 : 95,380.74 = 38,901.20 : x
  2. Step 2: Convert to fraction form
    69,112.98/95,380.74 = 38,901.20/x
  3. Step 3: Cross multiply
    69,112.98x = 95,380.74 × 38,901.20
  4. Step 4: Simplify right side
    69,112.98x = 3,710,424,571.48
  5. Step 5: Solve for x
    x = 3,710,424,571.48/69,112.98
  6. Step 6: Final answer
    x = 53,686.36

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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.