Home / 56,431.44-84,637.98-20,909.52

Finding the Fourth Proportional to 56,431.44, 84,637.98 and 20,909.52

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Solution

The fourth proportional to 56,431.44, 84,637.98 and 20,909.52 is: 31,360.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,431.44 : 84,637.98 = 20,909.52 : x
  2. Step 2: Convert to fraction form
    56,431.44/84,637.98 = 20,909.52/x
  3. Step 3: Cross multiply
    56,431.44x = 84,637.98 × 20,909.52
  4. Step 4: Simplify right side
    56,431.44x = 1,769,739,535.57
  5. Step 5: Solve for x
    x = 1,769,739,535.57/56,431.44
  6. Step 6: Final answer
    x = 31,360.88

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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.