Home / 40,679.80-60,786.46-31,009.18

Finding the Fourth Proportional to 40,679.80, 60,786.46 and 31,009.18

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Solution

The fourth proportional to 40,679.80, 60,786.46 and 31,009.18 is: 46,335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,679.80 : 60,786.46 = 31,009.18 : x
  2. Step 2: Convert to fraction form
    40,679.80/60,786.46 = 31,009.18/x
  3. Step 3: Cross multiply
    40,679.80x = 60,786.46 × 31,009.18
  4. Step 4: Simplify right side
    40,679.80x = 1,884,937,975.77
  5. Step 5: Solve for x
    x = 1,884,937,975.77/40,679.80
  6. Step 6: Final answer
    x = 46,335.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.