Home / 75,157.12-112,757.28-35,659.90

Finding the Fourth Proportional to 75,157.12, 112,757.28 and 35,659.90

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Solution

The fourth proportional to 75,157.12, 112,757.28 and 35,659.90 is: 53,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,157.12 : 112,757.28 = 35,659.90 : x
  2. Step 2: Convert to fraction form
    75,157.12/112,757.28 = 35,659.90/x
  3. Step 3: Cross multiply
    75,157.12x = 112,757.28 × 35,659.90
  4. Step 4: Simplify right side
    75,157.12x = 4,020,913,329.07
  5. Step 5: Solve for x
    x = 4,020,913,329.07/75,157.12
  6. Step 6: Final answer
    x = 53,500.10

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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.