Home / 82,981.56-124,472.36-20,652.06

Finding the Fourth Proportional to 82,981.56, 124,472.36 and 20,652.06

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Solution

The fourth proportional to 82,981.56, 124,472.36 and 20,652.06 is: 30,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,981.56 : 124,472.36 = 20,652.06 : x
  2. Step 2: Convert to fraction form
    82,981.56/124,472.36 = 20,652.06/x
  3. Step 3: Cross multiply
    82,981.56x = 124,472.36 × 20,652.06
  4. Step 4: Simplify right side
    82,981.56x = 2,570,610,647.06
  5. Step 5: Solve for x
    x = 2,570,610,647.06/82,981.56
  6. Step 6: Final answer
    x = 30,978.09

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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.