Home / 48,921.60-67,489.92-31,011.84

Finding the Fourth Proportional to 48,921.60, 67,489.92 and 31,011.84

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Solution

The fourth proportional to 48,921.60, 67,489.92 and 31,011.84 is: 42,782.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,921.60 : 67,489.92 = 31,011.84 : x
  2. Step 2: Convert to fraction form
    48,921.60/67,489.92 = 31,011.84/x
  3. Step 3: Cross multiply
    48,921.60x = 67,489.92 × 31,011.84
  4. Step 4: Simplify right side
    48,921.60x = 2,092,986,600.65
  5. Step 5: Solve for x
    x = 2,092,986,600.65/48,921.60
  6. Step 6: Final answer
    x = 42,782.46

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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.