Home / 56,191.12-84,279.02-18,750.35

Finding the Fourth Proportional to 56,191.12, 84,279.02 and 18,750.35

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Solution

The fourth proportional to 56,191.12, 84,279.02 and 18,750.35 is: 28,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,191.12 : 84,279.02 = 18,750.35 : x
  2. Step 2: Convert to fraction form
    56,191.12/84,279.02 = 18,750.35/x
  3. Step 3: Cross multiply
    56,191.12x = 84,279.02 × 18,750.35
  4. Step 4: Simplify right side
    56,191.12x = 1,580,261,239.60
  5. Step 5: Solve for x
    x = 1,580,261,239.60/56,191.12
  6. Step 6: Final answer
    x = 28,122.97

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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.