Home / 55,315.96-82,948.02-20,231.08

Finding the Fourth Proportional to 55,315.96, 82,948.02 and 20,231.08

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Solution

The fourth proportional to 55,315.96, 82,948.02 and 20,231.08 is: 30,337.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,315.96 : 82,948.02 = 20,231.08 : x
  2. Step 2: Convert to fraction form
    55,315.96/82,948.02 = 20,231.08/x
  3. Step 3: Cross multiply
    55,315.96x = 82,948.02 × 20,231.08
  4. Step 4: Simplify right side
    55,315.96x = 1,678,128,028.46
  5. Step 5: Solve for x
    x = 1,678,128,028.46/55,315.96
  6. Step 6: Final answer
    x = 30,337.14

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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.