Home / 82,900.80-124,278.30-49,634.10

Finding the Fourth Proportional to 82,900.80, 124,278.30 and 49,634.10

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Solution

The fourth proportional to 82,900.80, 124,278.30 and 49,634.10 is: 74,407.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,900.80 : 124,278.30 = 49,634.10 : x
  2. Step 2: Convert to fraction form
    82,900.80/124,278.30 = 49,634.10/x
  3. Step 3: Cross multiply
    82,900.80x = 124,278.30 × 49,634.10
  4. Step 4: Simplify right side
    82,900.80x = 6,168,441,570.03
  5. Step 5: Solve for x
    x = 6,168,441,570.03/82,900.80
  6. Step 6: Final answer
    x = 74,407.50

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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.