Home / 55,805.33-77,012.72-31,939.70

Finding the Fourth Proportional to 55,805.33, 77,012.72 and 31,939.70

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Solution

The fourth proportional to 55,805.33, 77,012.72 and 31,939.70 is: 44,077.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,805.33 : 77,012.72 = 31,939.70 : x
  2. Step 2: Convert to fraction form
    55,805.33/77,012.72 = 31,939.70/x
  3. Step 3: Cross multiply
    55,805.33x = 77,012.72 × 31,939.70
  4. Step 4: Simplify right side
    55,805.33x = 2,459,762,628.22
  5. Step 5: Solve for x
    x = 2,459,762,628.22/55,805.33
  6. Step 6: Final answer
    x = 44,077.56

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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.