Home / 88,427.94-121,994.55-54,426.21

Finding the Fourth Proportional to 88,427.94, 121,994.55 and 54,426.21

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Solution

The fourth proportional to 88,427.94, 121,994.55 and 54,426.21 is: 75,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,427.94 : 121,994.55 = 54,426.21 : x
  2. Step 2: Convert to fraction form
    88,427.94/121,994.55 = 54,426.21/x
  3. Step 3: Cross multiply
    88,427.94x = 121,994.55 × 54,426.21
  4. Step 4: Simplify right side
    88,427.94x = 6,639,700,997.16
  5. Step 5: Solve for x
    x = 6,639,700,997.16/88,427.94
  6. Step 6: Final answer
    x = 75,086.01

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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.