Home / 56,921.48-85,386.33-21,861.14

Finding the Fourth Proportional to 56,921.48, 85,386.33 and 21,861.14

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Solution

The fourth proportional to 56,921.48, 85,386.33 and 21,861.14 is: 32,793.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,921.48 : 85,386.33 = 21,861.14 : x
  2. Step 2: Convert to fraction form
    56,921.48/85,386.33 = 21,861.14/x
  3. Step 3: Cross multiply
    56,921.48x = 85,386.33 × 21,861.14
  4. Step 4: Simplify right side
    56,921.48x = 1,866,642,506.10
  5. Step 5: Solve for x
    x = 1,866,642,506.10/56,921.48
  6. Step 6: Final answer
    x = 32,793.29

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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.