Home / 76,496.95-105,565.70-42,508.61

Finding the Fourth Proportional to 76,496.95, 105,565.70 and 42,508.61

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Solution

The fourth proportional to 76,496.95, 105,565.70 and 42,508.61 is: 58,661.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,496.95 : 105,565.70 = 42,508.61 : x
  2. Step 2: Convert to fraction form
    76,496.95/105,565.70 = 42,508.61/x
  3. Step 3: Cross multiply
    76,496.95x = 105,565.70 × 42,508.61
  4. Step 4: Simplify right side
    76,496.95x = 4,487,450,749.12
  5. Step 5: Solve for x
    x = 4,487,450,749.12/76,496.95
  6. Step 6: Final answer
    x = 58,661.83

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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.