Home / 83,384.93-115,070.36-45,143.45

Finding the Fourth Proportional to 83,384.93, 115,070.36 and 45,143.45

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Solution

The fourth proportional to 83,384.93, 115,070.36 and 45,143.45 is: 62,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,384.93 : 115,070.36 = 45,143.45 : x
  2. Step 2: Convert to fraction form
    83,384.93/115,070.36 = 45,143.45/x
  3. Step 3: Cross multiply
    83,384.93x = 115,070.36 × 45,143.45
  4. Step 4: Simplify right side
    83,384.93x = 5,194,673,105.10
  5. Step 5: Solve for x
    x = 5,194,673,105.10/83,384.93
  6. Step 6: Final answer
    x = 62,297.51

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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.