Home / 82,900.16-124,350.24-20,570.66

Finding the Fourth Proportional to 82,900.16, 124,350.24 and 20,570.66

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Solution

The fourth proportional to 82,900.16, 124,350.24 and 20,570.66 is: 30,855.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,900.16 : 124,350.24 = 20,570.66 : x
  2. Step 2: Convert to fraction form
    82,900.16/124,350.24 = 20,570.66/x
  3. Step 3: Cross multiply
    82,900.16x = 124,350.24 × 20,570.66
  4. Step 4: Simplify right side
    82,900.16x = 2,557,966,507.96
  5. Step 5: Solve for x
    x = 2,557,966,507.96/82,900.16
  6. Step 6: Final answer
    x = 30,855.99

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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.