Home / 42,987.48-64,421.15-36,629.14

Finding the Fourth Proportional to 42,987.48, 64,421.15 and 36,629.14

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Solution

The fourth proportional to 42,987.48, 64,421.15 and 36,629.14 is: 54,892.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,987.48 : 64,421.15 = 36,629.14 : x
  2. Step 2: Convert to fraction form
    42,987.48/64,421.15 = 36,629.14/x
  3. Step 3: Cross multiply
    42,987.48x = 64,421.15 × 36,629.14
  4. Step 4: Simplify right side
    42,987.48x = 2,359,691,589.14
  5. Step 5: Solve for x
    x = 2,359,691,589.14/42,987.48
  6. Step 6: Final answer
    x = 54,892.54

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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.