Home / 56,013.98-77,192.96-40,070.75

Finding the Fourth Proportional to 56,013.98, 77,192.96 and 40,070.75

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Solution

The fourth proportional to 56,013.98, 77,192.96 and 40,070.75 is: 55,221.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,013.98 : 77,192.96 = 40,070.75 : x
  2. Step 2: Convert to fraction form
    56,013.98/77,192.96 = 40,070.75/x
  3. Step 3: Cross multiply
    56,013.98x = 77,192.96 × 40,070.75
  4. Step 4: Simplify right side
    56,013.98x = 3,093,179,215.60
  5. Step 5: Solve for x
    x = 3,093,179,215.60/56,013.98
  6. Step 6: Final answer
    x = 55,221.56

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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.