Home / 56,221.29-84,303.28-18,767.90

Finding the Fourth Proportional to 56,221.29, 84,303.28 and 18,767.90

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Solution

The fourth proportional to 56,221.29, 84,303.28 and 18,767.90 is: 28,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.29 : 84,303.28 = 18,767.90 : x
  2. Step 2: Convert to fraction form
    56,221.29/84,303.28 = 18,767.90/x
  3. Step 3: Cross multiply
    56,221.29x = 84,303.28 × 18,767.90
  4. Step 4: Simplify right side
    56,221.29x = 1,582,195,762.93
  5. Step 5: Solve for x
    x = 1,582,195,762.93/56,221.29
  6. Step 6: Final answer
    x = 28,142.29

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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.