Home / 55,435.20-83,061.60-32,020.80

Finding the Fourth Proportional to 55,435.20, 83,061.60 and 32,020.80

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Solution

The fourth proportional to 55,435.20, 83,061.60 and 32,020.80 is: 47,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,435.20 : 83,061.60 = 32,020.80 : x
  2. Step 2: Convert to fraction form
    55,435.20/83,061.60 = 32,020.80/x
  3. Step 3: Cross multiply
    55,435.20x = 83,061.60 × 32,020.80
  4. Step 4: Simplify right side
    55,435.20x = 2,659,698,881.28
  5. Step 5: Solve for x
    x = 2,659,698,881.28/55,435.20
  6. Step 6: Final answer
    x = 47,978.52

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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.