Home / 55,302.32-82,938.80-20,242.24

Finding the Fourth Proportional to 55,302.32, 82,938.80 and 20,242.24

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Solution

The fourth proportional to 55,302.32, 82,938.80 and 20,242.24 is: 30,357.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,302.32 : 82,938.80 = 20,242.24 : x
  2. Step 2: Convert to fraction form
    55,302.32/82,938.80 = 20,242.24/x
  3. Step 3: Cross multiply
    55,302.32x = 82,938.80 × 20,242.24
  4. Step 4: Simplify right side
    55,302.32x = 1,678,867,094.91
  5. Step 5: Solve for x
    x = 1,678,867,094.91/55,302.32
  6. Step 6: Final answer
    x = 30,357.99

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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.