Home / 66,041.11-91,068.23-56,512.54

Finding the Fourth Proportional to 66,041.11, 91,068.23 and 56,512.54

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Solution

The fourth proportional to 66,041.11, 91,068.23 and 56,512.54 is: 77,928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,041.11 : 91,068.23 = 56,512.54 : x
  2. Step 2: Convert to fraction form
    66,041.11/91,068.23 = 56,512.54/x
  3. Step 3: Cross multiply
    66,041.11x = 91,068.23 × 56,512.54
  4. Step 4: Simplify right side
    66,041.11x = 5,146,496,990.60
  5. Step 5: Solve for x
    x = 5,146,496,990.60/66,041.11
  6. Step 6: Final answer
    x = 77,928.69

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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.