Home / 70,732.92-106,099.38-28,631.64

Finding the Fourth Proportional to 70,732.92, 106,099.38 and 28,631.64

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Solution

The fourth proportional to 70,732.92, 106,099.38 and 28,631.64 is: 42,947.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,732.92 : 106,099.38 = 28,631.64 : x
  2. Step 2: Convert to fraction form
    70,732.92/106,099.38 = 28,631.64/x
  3. Step 3: Cross multiply
    70,732.92x = 106,099.38 × 28,631.64
  4. Step 4: Simplify right side
    70,732.92x = 3,037,799,252.38
  5. Step 5: Solve for x
    x = 3,037,799,252.38/70,732.92
  6. Step 6: Final answer
    x = 42,947.46

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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.