Home / 75,009.20-112,513.80-45,484.70

Finding the Fourth Proportional to 75,009.20, 112,513.80 and 45,484.70

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Solution

The fourth proportional to 75,009.20, 112,513.80 and 45,484.70 is: 68,227.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,009.20 : 112,513.80 = 45,484.70 : x
  2. Step 2: Convert to fraction form
    75,009.20/112,513.80 = 45,484.70/x
  3. Step 3: Cross multiply
    75,009.20x = 112,513.80 × 45,484.70
  4. Step 4: Simplify right side
    75,009.20x = 5,117,656,438.86
  5. Step 5: Solve for x
    x = 5,117,656,438.86/75,009.20
  6. Step 6: Final answer
    x = 68,227.05

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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.