Home / 76,474.02-105,572.52-47,809.61

Finding the Fourth Proportional to 76,474.02, 105,572.52 and 47,809.61

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Solution

The fourth proportional to 76,474.02, 105,572.52 and 47,809.61 is: 66,001.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,474.02 : 105,572.52 = 47,809.61 : x
  2. Step 2: Convert to fraction form
    76,474.02/105,572.52 = 47,809.61/x
  3. Step 3: Cross multiply
    76,474.02x = 105,572.52 × 47,809.61
  4. Step 4: Simplify right side
    76,474.02x = 5,047,380,480.05
  5. Step 5: Solve for x
    x = 5,047,380,480.05/76,474.02
  6. Step 6: Final answer
    x = 66,001.24

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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.