Home / 55,491.72-76,578.30-31,295.25

Finding the Fourth Proportional to 55,491.72, 76,578.30 and 31,295.25

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Solution

The fourth proportional to 55,491.72, 76,578.30 and 31,295.25 is: 43,187.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,491.72 : 76,578.30 = 31,295.25 : x
  2. Step 2: Convert to fraction form
    55,491.72/76,578.30 = 31,295.25/x
  3. Step 3: Cross multiply
    55,491.72x = 76,578.30 × 31,295.25
  4. Step 4: Simplify right side
    55,491.72x = 2,396,537,043.08
  5. Step 5: Solve for x
    x = 2,396,537,043.08/55,491.72
  6. Step 6: Final answer
    x = 43,187.29

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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.