Home / 55,443.08-83,115.32-20,374.54

Finding the Fourth Proportional to 55,443.08, 83,115.32 and 20,374.54

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Solution

The fourth proportional to 55,443.08, 83,115.32 and 20,374.54 is: 30,543.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,443.08 : 83,115.32 = 20,374.54 : x
  2. Step 2: Convert to fraction form
    55,443.08/83,115.32 = 20,374.54/x
  3. Step 3: Cross multiply
    55,443.08x = 83,115.32 × 20,374.54
  4. Step 4: Simplify right side
    55,443.08x = 1,693,436,102.29
  5. Step 5: Solve for x
    x = 1,693,436,102.29/55,443.08
  6. Step 6: Final answer
    x = 30,543.69

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1.5x scale

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.