Home / 55,510.80-83,266.20-20,445.90

Finding the Fourth Proportional to 55,510.80, 83,266.20 and 20,445.90

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Solution

The fourth proportional to 55,510.80, 83,266.20 and 20,445.90 is: 30,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,510.80 : 83,266.20 = 20,445.90 : x
  2. Step 2: Convert to fraction form
    55,510.80/83,266.20 = 20,445.90/x
  3. Step 3: Cross multiply
    55,510.80x = 83,266.20 × 20,445.90
  4. Step 4: Simplify right side
    55,510.80x = 1,702,452,398.58
  5. Step 5: Solve for x
    x = 1,702,452,398.58/55,510.80
  6. Step 6: Final answer
    x = 30,668.85

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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.