Home / 40,551.18-55,880.89-31,001.85

Finding the Fourth Proportional to 40,551.18, 55,880.89 and 31,001.85

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Solution

The fourth proportional to 40,551.18, 55,880.89 and 31,001.85 is: 42,721.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,551.18 : 55,880.89 = 31,001.85 : x
  2. Step 2: Convert to fraction form
    40,551.18/55,880.89 = 31,001.85/x
  3. Step 3: Cross multiply
    40,551.18x = 55,880.89 × 31,001.85
  4. Step 4: Simplify right side
    40,551.18x = 1,732,410,969.65
  5. Step 5: Solve for x
    x = 1,732,410,969.65/40,551.18
  6. Step 6: Final answer
    x = 42,721.59

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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.