Home / 81,532.40-122,259.72-34,759.76

Finding the Fourth Proportional to 81,532.40, 122,259.72 and 34,759.76

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Solution

The fourth proportional to 81,532.40, 122,259.72 and 34,759.76 is: 52,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,532.40 : 122,259.72 = 34,759.76 : x
  2. Step 2: Convert to fraction form
    81,532.40/122,259.72 = 34,759.76/x
  3. Step 3: Cross multiply
    81,532.40x = 122,259.72 × 34,759.76
  4. Step 4: Simplify right side
    81,532.40x = 4,249,718,524.87
  5. Step 5: Solve for x
    x = 4,249,718,524.87/81,532.40
  6. Step 6: Final answer
    x = 52,123.06

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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.