Home / 53,275.14-79,815.80-31,021.05

Finding the Fourth Proportional to 53,275.14, 79,815.80 and 31,021.05

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Solution

The fourth proportional to 53,275.14, 79,815.80 and 31,021.05 is: 46,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,275.14 : 79,815.80 = 31,021.05 : x
  2. Step 2: Convert to fraction form
    53,275.14/79,815.80 = 31,021.05/x
  3. Step 3: Cross multiply
    53,275.14x = 79,815.80 × 31,021.05
  4. Step 4: Simplify right side
    53,275.14x = 2,475,969,922.59
  5. Step 5: Solve for x
    x = 2,475,969,922.59/53,275.14
  6. Step 6: Final answer
    x = 46,475.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.