Home / 94,705.20-142,035.93-28,129.28

Finding the Fourth Proportional to 94,705.20, 142,035.93 and 28,129.28

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Solution

The fourth proportional to 94,705.20, 142,035.93 and 28,129.28 is: 42,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,705.20 : 142,035.93 = 28,129.28 : x
  2. Step 2: Convert to fraction form
    94,705.20/142,035.93 = 28,129.28/x
  3. Step 3: Cross multiply
    94,705.20x = 142,035.93 × 28,129.28
  4. Step 4: Simplify right side
    94,705.20x = 3,995,367,734.85
  5. Step 5: Solve for x
    x = 3,995,367,734.85/94,705.20
  6. Step 6: Final answer
    x = 42,187.42

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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.