Home / 97,401.32-134,415.78-57,145.96

Finding the Fourth Proportional to 97,401.32, 134,415.78 and 57,145.96

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Solution

The fourth proportional to 97,401.32, 134,415.78 and 57,145.96 is: 78,862.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,401.32 : 134,415.78 = 57,145.96 : x
  2. Step 2: Convert to fraction form
    97,401.32/134,415.78 = 57,145.96/x
  3. Step 3: Cross multiply
    97,401.32x = 134,415.78 × 57,145.96
  4. Step 4: Simplify right side
    97,401.32x = 7,681,318,787.25
  5. Step 5: Solve for x
    x = 7,681,318,787.25/97,401.32
  6. Step 6: Final answer
    x = 78,862.57

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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.