Home / 48,761.87-67,318.16-30,631.50

Finding the Fourth Proportional to 48,761.87, 67,318.16 and 30,631.50

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Solution

The fourth proportional to 48,761.87, 67,318.16 and 30,631.50 is: 42,288.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,761.87 : 67,318.16 = 30,631.50 : x
  2. Step 2: Convert to fraction form
    48,761.87/67,318.16 = 30,631.50/x
  3. Step 3: Cross multiply
    48,761.87x = 67,318.16 × 30,631.50
  4. Step 4: Simplify right side
    48,761.87x = 2,062,056,064.88
  5. Step 5: Solve for x
    x = 2,062,056,064.88/48,761.87
  6. Step 6: Final answer
    x = 42,288.29

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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.