Home / 56,747.56-85,110.36-21,678.88

Finding the Fourth Proportional to 56,747.56, 85,110.36 and 21,678.88

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Solution

The fourth proportional to 56,747.56, 85,110.36 and 21,678.88 is: 32,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,747.56 : 85,110.36 = 21,678.88 : x
  2. Step 2: Convert to fraction form
    56,747.56/85,110.36 = 21,678.88/x
  3. Step 3: Cross multiply
    56,747.56x = 85,110.36 × 21,678.88
  4. Step 4: Simplify right side
    56,747.56x = 1,845,097,281.20
  5. Step 5: Solve for x
    x = 1,845,097,281.20/56,747.56
  6. Step 6: Final answer
    x = 32,514.13

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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.