Home / 82,840.13-124,260.19-20,510.63

Finding the Fourth Proportional to 82,840.13, 124,260.19 and 20,510.63

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Solution

The fourth proportional to 82,840.13, 124,260.19 and 20,510.63 is: 30,765.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,840.13 : 124,260.19 = 20,510.63 : x
  2. Step 2: Convert to fraction form
    82,840.13/124,260.19 = 20,510.63/x
  3. Step 3: Cross multiply
    82,840.13x = 124,260.19 × 20,510.63
  4. Step 4: Simplify right side
    82,840.13x = 2,548,654,780.82
  5. Step 5: Solve for x
    x = 2,548,654,780.82/82,840.13
  6. Step 6: Final answer
    x = 30,765.94

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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.