Home / 55,759.80-83,612.03-20,219.70

Finding the Fourth Proportional to 55,759.80, 83,612.03 and 20,219.70

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Solution

The fourth proportional to 55,759.80, 83,612.03 and 20,219.70 is: 30,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,759.80 : 83,612.03 = 20,219.70 : x
  2. Step 2: Convert to fraction form
    55,759.80/83,612.03 = 20,219.70/x
  3. Step 3: Cross multiply
    55,759.80x = 83,612.03 × 20,219.70
  4. Step 4: Simplify right side
    55,759.80x = 1,690,610,061.89
  5. Step 5: Solve for x
    x = 1,690,610,061.89/55,759.80
  6. Step 6: Final answer
    x = 30,319.51

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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.