Home / 55,862.92-83,772.42-20,315.80

Finding the Fourth Proportional to 55,862.92, 83,772.42 and 20,315.80

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Solution

The fourth proportional to 55,862.92, 83,772.42 and 20,315.80 is: 30,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,862.92 : 83,772.42 = 20,315.80 : x
  2. Step 2: Convert to fraction form
    55,862.92/83,772.42 = 20,315.80/x
  3. Step 3: Cross multiply
    55,862.92x = 83,772.42 × 20,315.80
  4. Step 4: Simplify right side
    55,862.92x = 1,701,903,730.24
  5. Step 5: Solve for x
    x = 1,701,903,730.24/55,862.92
  6. Step 6: Final answer
    x = 30,465.71

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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.