Home / 76,191.14-105,144.54-45,970.61

Finding the Fourth Proportional to 76,191.14, 105,144.54 and 45,970.61

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Solution

The fourth proportional to 76,191.14, 105,144.54 and 45,970.61 is: 63,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,191.14 : 105,144.54 = 45,970.61 : x
  2. Step 2: Convert to fraction form
    76,191.14/105,144.54 = 45,970.61/x
  3. Step 3: Cross multiply
    76,191.14x = 105,144.54 × 45,970.61
  4. Step 4: Simplify right side
    76,191.14x = 4,833,558,116.25
  5. Step 5: Solve for x
    x = 4,833,558,116.25/76,191.14
  6. Step 6: Final answer
    x = 63,439.90

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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.