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Finding the Fourth Proportional to 83,583.42, 115,246.36 and 68,420.22

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Solution

The fourth proportional to 83,583.42, 115,246.36 and 68,420.22 is: 94,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,583.42 : 115,246.36 = 68,420.22 : x
  2. Step 2: Convert to fraction form
    83,583.42/115,246.36 = 68,420.22/x
  3. Step 3: Cross multiply
    83,583.42x = 115,246.36 × 68,420.22
  4. Step 4: Simplify right side
    83,583.42x = 7,885,181,305.40
  5. Step 5: Solve for x
    x = 7,885,181,305.40/83,583.42
  6. Step 6: Final answer
    x = 94,339.06

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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.