Home / 76,461.18-105,512.84-42,471.86

Finding the Fourth Proportional to 76,461.18, 105,512.84 and 42,471.86

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Solution

The fourth proportional to 76,461.18, 105,512.84 and 42,471.86 is: 58,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,461.18 : 105,512.84 = 42,471.86 : x
  2. Step 2: Convert to fraction form
    76,461.18/105,512.84 = 42,471.86/x
  3. Step 3: Cross multiply
    76,461.18x = 105,512.84 × 42,471.86
  4. Step 4: Simplify right side
    76,461.18x = 4,481,326,568.68
  5. Step 5: Solve for x
    x = 4,481,326,568.68/76,461.18
  6. Step 6: Final answer
    x = 58,609.17

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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.