Home / 42,756.22-64,134.50-25,213.75

Finding the Fourth Proportional to 42,756.22, 64,134.50 and 25,213.75

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Solution

The fourth proportional to 42,756.22, 64,134.50 and 25,213.75 is: 37,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,756.22 : 64,134.50 = 25,213.75 : x
  2. Step 2: Convert to fraction form
    42,756.22/64,134.50 = 25,213.75/x
  3. Step 3: Cross multiply
    42,756.22x = 64,134.50 × 25,213.75
  4. Step 4: Simplify right side
    42,756.22x = 1,617,071,249.38
  5. Step 5: Solve for x
    x = 1,617,071,249.38/42,756.22
  6. Step 6: Final answer
    x = 37,820.73

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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.