Home / 76,172.24-105,112.68-42,631.76

Finding the Fourth Proportional to 76,172.24, 105,112.68 and 42,631.76

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Solution

The fourth proportional to 76,172.24, 105,112.68 and 42,631.76 is: 58,829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,172.24 : 105,112.68 = 42,631.76 : x
  2. Step 2: Convert to fraction form
    76,172.24/105,112.68 = 42,631.76/x
  3. Step 3: Cross multiply
    76,172.24x = 105,112.68 × 42,631.76
  4. Step 4: Simplify right side
    76,172.24x = 4,481,138,546.72
  5. Step 5: Solve for x
    x = 4,481,138,546.72/76,172.24
  6. Step 6: Final answer
    x = 58,829.02

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1.5x scale

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.