Home / 55,084.16-82,621.92-20,031.68

Finding the Fourth Proportional to 55,084.16, 82,621.92 and 20,031.68

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Solution

The fourth proportional to 55,084.16, 82,621.92 and 20,031.68 is: 30,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,084.16 : 82,621.92 = 20,031.68 : x
  2. Step 2: Convert to fraction form
    55,084.16/82,621.92 = 20,031.68/x
  3. Step 3: Cross multiply
    55,084.16x = 82,621.92 × 20,031.68
  4. Step 4: Simplify right side
    55,084.16x = 1,655,055,862.43
  5. Step 5: Solve for x
    x = 1,655,055,862.43/55,084.16
  6. Step 6: Final answer
    x = 30,045.95

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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.