Home / 56,504.09-77,975.78-31,010.65

Finding the Fourth Proportional to 56,504.09, 77,975.78 and 31,010.65

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Solution

The fourth proportional to 56,504.09, 77,975.78 and 31,010.65 is: 42,794.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,504.09 : 77,975.78 = 31,010.65 : x
  2. Step 2: Convert to fraction form
    56,504.09/77,975.78 = 31,010.65/x
  3. Step 3: Cross multiply
    56,504.09x = 77,975.78 × 31,010.65
  4. Step 4: Simplify right side
    56,504.09x = 2,418,079,622.06
  5. Step 5: Solve for x
    x = 2,418,079,622.06/56,504.09
  6. Step 6: Final answer
    x = 42,794.77

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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.