Home / 53,225.18-79,836.05-21,625.90

Finding the Fourth Proportional to 53,225.18, 79,836.05 and 21,625.90

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Solution

The fourth proportional to 53,225.18, 79,836.05 and 21,625.90 is: 32,438.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,225.18 : 79,836.05 = 21,625.90 : x
  2. Step 2: Convert to fraction form
    53,225.18/79,836.05 = 21,625.90/x
  3. Step 3: Cross multiply
    53,225.18x = 79,836.05 × 21,625.90
  4. Step 4: Simplify right side
    53,225.18x = 1,726,526,615.60
  5. Step 5: Solve for x
    x = 1,726,526,615.60/53,225.18
  6. Step 6: Final answer
    x = 32,438.15

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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.