Home / 51,947.06-71,681.76-31,809.65

Finding the Fourth Proportional to 51,947.06, 71,681.76 and 31,809.65

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Solution

The fourth proportional to 51,947.06, 71,681.76 and 31,809.65 is: 43,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,947.06 : 71,681.76 = 31,809.65 : x
  2. Step 2: Convert to fraction form
    51,947.06/71,681.76 = 31,809.65/x
  3. Step 3: Cross multiply
    51,947.06x = 71,681.76 × 31,809.65
  4. Step 4: Simplify right side
    51,947.06x = 2,280,171,338.58
  5. Step 5: Solve for x
    x = 2,280,171,338.58/51,947.06
  6. Step 6: Final answer
    x = 43,894.14

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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.