Home / 53,605.65-73,979.22-30,948.78

Finding the Fourth Proportional to 53,605.65, 73,979.22 and 30,948.78

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Solution

The fourth proportional to 53,605.65, 73,979.22 and 30,948.78 is: 42,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,605.65 : 73,979.22 = 30,948.78 : x
  2. Step 2: Convert to fraction form
    53,605.65/73,979.22 = 30,948.78/x
  3. Step 3: Cross multiply
    53,605.65x = 73,979.22 × 30,948.78
  4. Step 4: Simplify right side
    53,605.65x = 2,289,566,997.83
  5. Step 5: Solve for x
    x = 2,289,566,997.83/53,605.65
  6. Step 6: Final answer
    x = 42,711.30

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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.