Home / 76,141.38-105,122.76-48,928.48

Finding the Fourth Proportional to 76,141.38, 105,122.76 and 48,928.48

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Solution

The fourth proportional to 76,141.38, 105,122.76 and 48,928.48 is: 67,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,141.38 : 105,122.76 = 48,928.48 : x
  2. Step 2: Convert to fraction form
    76,141.38/105,122.76 = 48,928.48/x
  3. Step 3: Cross multiply
    76,141.38x = 105,122.76 × 48,928.48
  4. Step 4: Simplify right side
    76,141.38x = 5,143,496,860.20
  5. Step 5: Solve for x
    x = 5,143,496,860.20/76,141.38
  6. Step 6: Final answer
    x = 67,551.93

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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.