Home / 75,259.28-112,956.60-40,228.88

Finding the Fourth Proportional to 75,259.28, 112,956.60 and 40,228.88

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Solution

The fourth proportional to 75,259.28, 112,956.60 and 40,228.88 is: 60,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,259.28 : 112,956.60 = 40,228.88 : x
  2. Step 2: Convert to fraction form
    75,259.28/112,956.60 = 40,228.88/x
  3. Step 3: Cross multiply
    75,259.28x = 112,956.60 × 40,228.88
  4. Step 4: Simplify right side
    75,259.28x = 4,544,117,506.61
  5. Step 5: Solve for x
    x = 4,544,117,506.61/75,259.28
  6. Step 6: Final answer
    x = 60,379.50

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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.