Home / 55,307.36-76,358.04-34,115.60

Finding the Fourth Proportional to 55,307.36, 76,358.04 and 34,115.60

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Solution

The fourth proportional to 55,307.36, 76,358.04 and 34,115.60 is: 47,100.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,307.36 : 76,358.04 = 34,115.60 : x
  2. Step 2: Convert to fraction form
    55,307.36/76,358.04 = 34,115.60/x
  3. Step 3: Cross multiply
    55,307.36x = 76,358.04 × 34,115.60
  4. Step 4: Simplify right side
    55,307.36x = 2,605,000,349.42
  5. Step 5: Solve for x
    x = 2,605,000,349.42/55,307.36
  6. Step 6: Final answer
    x = 47,100.43

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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.