Home / 97,872.84-135,120.48-64,436.04

Finding the Fourth Proportional to 97,872.84, 135,120.48 and 64,436.04

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Solution

The fourth proportional to 97,872.84, 135,120.48 and 64,436.04 is: 88,958.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,872.84 : 135,120.48 = 64,436.04 : x
  2. Step 2: Convert to fraction form
    97,872.84/135,120.48 = 64,436.04/x
  3. Step 3: Cross multiply
    97,872.84x = 135,120.48 × 64,436.04
  4. Step 4: Simplify right side
    97,872.84x = 8,706,628,654.10
  5. Step 5: Solve for x
    x = 8,706,628,654.10/97,872.84
  6. Step 6: Final answer
    x = 88,958.58

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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.