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Finding the Fourth Proportional to 68,018.60, 93,859.22 and 63,003.08

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Solution

The fourth proportional to 68,018.60, 93,859.22 and 63,003.08 is: 86,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,018.60 : 93,859.22 = 63,003.08 : x
  2. Step 2: Convert to fraction form
    68,018.60/93,859.22 = 63,003.08/x
  3. Step 3: Cross multiply
    68,018.60x = 93,859.22 × 63,003.08
  4. Step 4: Simplify right side
    68,018.60x = 5,913,420,338.55
  5. Step 5: Solve for x
    x = 5,913,420,338.55/68,018.60
  6. Step 6: Final answer
    x = 86,938.28

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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.