Home / 77,728.42-116,579.58-21,574.23

Finding the Fourth Proportional to 77,728.42, 116,579.58 and 21,574.23

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Solution

The fourth proportional to 77,728.42, 116,579.58 and 21,574.23 is: 32,357.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,728.42 : 116,579.58 = 21,574.23 : x
  2. Step 2: Convert to fraction form
    77,728.42/116,579.58 = 21,574.23/x
  3. Step 3: Cross multiply
    77,728.42x = 116,579.58 × 21,574.23
  4. Step 4: Simplify right side
    77,728.42x = 2,515,114,712.68
  5. Step 5: Solve for x
    x = 2,515,114,712.68/77,728.42
  6. Step 6: Final answer
    x = 32,357.73

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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.