Home / 57,045.46-78,729.32-34,396.02

Finding the Fourth Proportional to 57,045.46, 78,729.32 and 34,396.02

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Solution

The fourth proportional to 57,045.46, 78,729.32 and 34,396.02 is: 47,470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,045.46 : 78,729.32 = 34,396.02 : x
  2. Step 2: Convert to fraction form
    57,045.46/78,729.32 = 34,396.02/x
  3. Step 3: Cross multiply
    57,045.46x = 78,729.32 × 34,396.02
  4. Step 4: Simplify right side
    57,045.46x = 2,707,975,265.31
  5. Step 5: Solve for x
    x = 2,707,975,265.31/57,045.46
  6. Step 6: Final answer
    x = 47,470.48

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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.