Home / 75,231.20-112,875.60-74,050.40

Finding the Fourth Proportional to 75,231.20, 112,875.60 and 74,050.40

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Solution

The fourth proportional to 75,231.20, 112,875.60 and 74,050.40 is: 111,103.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,231.20 : 112,875.60 = 74,050.40 : x
  2. Step 2: Convert to fraction form
    75,231.20/112,875.60 = 74,050.40/x
  3. Step 3: Cross multiply
    75,231.20x = 112,875.60 × 74,050.40
  4. Step 4: Simplify right side
    75,231.20x = 8,358,483,330.24
  5. Step 5: Solve for x
    x = 8,358,483,330.24/75,231.20
  6. Step 6: Final answer
    x = 111,103.95

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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.