Home / 82,969.40-124,578.32-47,470.75

Finding the Fourth Proportional to 82,969.40, 124,578.32 and 47,470.75

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Solution

The fourth proportional to 82,969.40, 124,578.32 and 47,470.75 is: 71,277.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,969.40 : 124,578.32 = 47,470.75 : x
  2. Step 2: Convert to fraction form
    82,969.40/124,578.32 = 47,470.75/x
  3. Step 3: Cross multiply
    82,969.40x = 124,578.32 × 47,470.75
  4. Step 4: Simplify right side
    82,969.40x = 5,913,826,284.14
  5. Step 5: Solve for x
    x = 5,913,826,284.14/82,969.40
  6. Step 6: Final answer
    x = 71,277.20

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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.