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Finding the Fourth Proportional to 95,438.80, 143,174.40 and 28,878.40

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Solution

The fourth proportional to 95,438.80, 143,174.40 and 28,878.40 is: 43,322.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,438.80 : 143,174.40 = 28,878.40 : x
  2. Step 2: Convert to fraction form
    95,438.80/143,174.40 = 28,878.40/x
  3. Step 3: Cross multiply
    95,438.80x = 143,174.40 × 28,878.40
  4. Step 4: Simplify right side
    95,438.80x = 4,134,647,592.96
  5. Step 5: Solve for x
    x = 4,134,647,592.96/95,438.80
  6. Step 6: Final answer
    x = 43,322.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.