Home / 55,364.50-83,079.96-20,307.70

Finding the Fourth Proportional to 55,364.50, 83,079.96 and 20,307.70

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Solution

The fourth proportional to 55,364.50, 83,079.96 and 20,307.70 is: 30,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,364.50 : 83,079.96 = 20,307.70 : x
  2. Step 2: Convert to fraction form
    55,364.50/83,079.96 = 20,307.70/x
  3. Step 3: Cross multiply
    55,364.50x = 83,079.96 × 20,307.70
  4. Step 4: Simplify right side
    55,364.50x = 1,687,162,903.69
  5. Step 5: Solve for x
    x = 1,687,162,903.69/55,364.50
  6. Step 6: Final answer
    x = 30,473.73

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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.