Home / 57,153.40-78,872.81-34,206.85

Finding the Fourth Proportional to 57,153.40, 78,872.81 and 34,206.85

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Solution

The fourth proportional to 57,153.40, 78,872.81 and 34,206.85 is: 47,206.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.40 : 78,872.81 = 34,206.85 : x
  2. Step 2: Convert to fraction form
    57,153.40/78,872.81 = 34,206.85/x
  3. Step 3: Cross multiply
    57,153.40x = 78,872.81 × 34,206.85
  4. Step 4: Simplify right side
    57,153.40x = 2,697,990,380.75
  5. Step 5: Solve for x
    x = 2,697,990,380.75/57,153.40
  6. Step 6: Final answer
    x = 47,206.12

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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.