Home / 56,723.60-85,094.40-19,287.20

Finding the Fourth Proportional to 56,723.60, 85,094.40 and 19,287.20

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Solution

The fourth proportional to 56,723.60, 85,094.40 and 19,287.20 is: 28,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,723.60 : 85,094.40 = 19,287.20 : x
  2. Step 2: Convert to fraction form
    56,723.60/85,094.40 = 19,287.20/x
  3. Step 3: Cross multiply
    56,723.60x = 85,094.40 × 19,287.20
  4. Step 4: Simplify right side
    56,723.60x = 1,641,232,711.68
  5. Step 5: Solve for x
    x = 1,641,232,711.68/56,723.60
  6. Step 6: Final answer
    x = 28,933.86

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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.