Home / 47,949.69-66,139.70-31,816.65

Finding the Fourth Proportional to 47,949.69, 66,139.70 and 31,816.65

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Solution

The fourth proportional to 47,949.69, 66,139.70 and 31,816.65 is: 43,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,949.69 : 66,139.70 = 31,816.65 : x
  2. Step 2: Convert to fraction form
    47,949.69/66,139.70 = 31,816.65/x
  3. Step 3: Cross multiply
    47,949.69x = 66,139.70 × 31,816.65
  4. Step 4: Simplify right side
    47,949.69x = 2,104,343,526.92
  5. Step 5: Solve for x
    x = 2,104,343,526.92/47,949.69
  6. Step 6: Final answer
    x = 43,886.49

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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.