Home / 86,253.12-129,340-44,729.28

Finding the Fourth Proportional to 86,253.12, 129,340 and 44,729.28

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Solution

The fourth proportional to 86,253.12, 129,340 and 44,729.28 is: 67,073.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,253.12 : 129,340 = 44,729.28 : x
  2. Step 2: Convert to fraction form
    86,253.12/129,340 = 44,729.28/x
  3. Step 3: Cross multiply
    86,253.12x = 129,340 × 44,729.28
  4. Step 4: Simplify right side
    86,253.12x = 5,785,285,075.20
  5. Step 5: Solve for x
    x = 5,785,285,075.20/86,253.12
  6. Step 6: Final answer
    x = 67,073.34

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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.