Home / 76,740.75-105,902.24-48,470.13

Finding the Fourth Proportional to 76,740.75, 105,902.24 and 48,470.13

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Solution

The fourth proportional to 76,740.75, 105,902.24 and 48,470.13 is: 66,888.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,740.75 : 105,902.24 = 48,470.13 : x
  2. Step 2: Convert to fraction form
    76,740.75/105,902.24 = 48,470.13/x
  3. Step 3: Cross multiply
    76,740.75x = 105,902.24 × 48,470.13
  4. Step 4: Simplify right side
    76,740.75x = 5,133,095,097.74
  5. Step 5: Solve for x
    x = 5,133,095,097.74/76,740.75
  6. Step 6: Final answer
    x = 66,888.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.