Home / 76,442.55-105,540.68-49,661.39

Finding the Fourth Proportional to 76,442.55, 105,540.68 and 49,661.39

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Solution

The fourth proportional to 76,442.55, 105,540.68 and 49,661.39 is: 68,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,442.55 : 105,540.68 = 49,661.39 : x
  2. Step 2: Convert to fraction form
    76,442.55/105,540.68 = 49,661.39/x
  3. Step 3: Cross multiply
    76,442.55x = 105,540.68 × 49,661.39
  4. Step 4: Simplify right side
    76,442.55x = 5,241,296,870.35
  5. Step 5: Solve for x
    x = 5,241,296,870.35/76,442.55
  6. Step 6: Final answer
    x = 68,565.18

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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.