Home / 91,470.48-137,236.80-49,354.56

Finding the Fourth Proportional to 91,470.48, 137,236.80 and 49,354.56

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Solution

The fourth proportional to 91,470.48, 137,236.80 and 49,354.56 is: 74,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,470.48 : 137,236.80 = 49,354.56 : x
  2. Step 2: Convert to fraction form
    91,470.48/137,236.80 = 49,354.56/x
  3. Step 3: Cross multiply
    91,470.48x = 137,236.80 × 49,354.56
  4. Step 4: Simplify right side
    91,470.48x = 6,773,261,879.81
  5. Step 5: Solve for x
    x = 6,773,261,879.81/91,470.48
  6. Step 6: Final answer
    x = 74,048.61

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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.