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Finding the Fourth Proportional to 95,428, 143,095.68 and 28,855.36

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Solution

The fourth proportional to 95,428, 143,095.68 and 28,855.36 is: 43,269.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,428 : 143,095.68 = 28,855.36 : x
  2. Step 2: Convert to fraction form
    95,428/143,095.68 = 28,855.36/x
  3. Step 3: Cross multiply
    95,428x = 143,095.68 × 28,855.36
  4. Step 4: Simplify right side
    95,428x = 4,129,077,360.84
  5. Step 5: Solve for x
    x = 4,129,077,360.84/95,428
  6. Step 6: Final answer
    x = 43,269.03

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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.