Home / 83,384.54-115,069.85-45,143.10

Finding the Fourth Proportional to 83,384.54, 115,069.85 and 45,143.10

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Solution

The fourth proportional to 83,384.54, 115,069.85 and 45,143.10 is: 62,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,384.54 : 115,069.85 = 45,143.10 : x
  2. Step 2: Convert to fraction form
    83,384.54/115,069.85 = 45,143.10/x
  3. Step 3: Cross multiply
    83,384.54x = 115,069.85 × 45,143.10
  4. Step 4: Simplify right side
    83,384.54x = 5,194,610,289.90
  5. Step 5: Solve for x
    x = 5,194,610,289.90/83,384.54
  6. Step 6: Final answer
    x = 62,297.05

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1.5x scale

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.