Home / 77,854.18-116,763.32-30,470.38

Finding the Fourth Proportional to 77,854.18, 116,763.32 and 30,470.38

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Solution

The fourth proportional to 77,854.18, 116,763.32 and 30,470.38 is: 45,698.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,854.18 : 116,763.32 = 30,470.38 : x
  2. Step 2: Convert to fraction form
    77,854.18/116,763.32 = 30,470.38/x
  3. Step 3: Cross multiply
    77,854.18x = 116,763.32 × 30,470.38
  4. Step 4: Simplify right side
    77,854.18x = 3,557,822,730.46
  5. Step 5: Solve for x
    x = 3,557,822,730.46/77,854.18
  6. Step 6: Final answer
    x = 45,698.54

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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.