Home / 48,123.32-72,183.28-21,809.64

Finding the Fourth Proportional to 48,123.32, 72,183.28 and 21,809.64

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Solution

The fourth proportional to 48,123.32, 72,183.28 and 21,809.64 is: 32,713.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,123.32 : 72,183.28 = 21,809.64 : x
  2. Step 2: Convert to fraction form
    48,123.32/72,183.28 = 21,809.64/x
  3. Step 3: Cross multiply
    48,123.32x = 72,183.28 × 21,809.64
  4. Step 4: Simplify right side
    48,123.32x = 1,574,291,350.82
  5. Step 5: Solve for x
    x = 1,574,291,350.82/48,123.32
  6. Step 6: Final answer
    x = 32,713.69

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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.