Home / 52,719.90-79,079.85-21,547.86

Finding the Fourth Proportional to 52,719.90, 79,079.85 and 21,547.86

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Solution

The fourth proportional to 52,719.90, 79,079.85 and 21,547.86 is: 32,321.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,719.90 : 79,079.85 = 21,547.86 : x
  2. Step 2: Convert to fraction form
    52,719.90/79,079.85 = 21,547.86/x
  3. Step 3: Cross multiply
    52,719.90x = 79,079.85 × 21,547.86
  4. Step 4: Simplify right side
    52,719.90x = 1,704,001,536.62
  5. Step 5: Solve for x
    x = 1,704,001,536.62/52,719.90
  6. Step 6: Final answer
    x = 32,321.79

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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.