Home / 66,040.11-91,066.85-56,511.54

Finding the Fourth Proportional to 66,040.11, 91,066.85 and 56,511.54

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Solution

The fourth proportional to 66,040.11, 91,066.85 and 56,511.54 is: 77,927.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,040.11 : 91,066.85 = 56,511.54 : x
  2. Step 2: Convert to fraction form
    66,040.11/91,066.85 = 56,511.54/x
  3. Step 3: Cross multiply
    66,040.11x = 91,066.85 × 56,511.54
  4. Step 4: Simplify right side
    66,040.11x = 5,146,327,865.81
  5. Step 5: Solve for x
    x = 5,146,327,865.81/66,040.11
  6. Step 6: Final answer
    x = 77,927.31

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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.