Home / 77,332.38-115,994.30-21,168.42

Finding the Fourth Proportional to 77,332.38, 115,994.30 and 21,168.42

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Solution

The fourth proportional to 77,332.38, 115,994.30 and 21,168.42 is: 31,751.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,332.38 : 115,994.30 = 21,168.42 : x
  2. Step 2: Convert to fraction form
    77,332.38/115,994.30 = 21,168.42/x
  3. Step 3: Cross multiply
    77,332.38x = 115,994.30 × 21,168.42
  4. Step 4: Simplify right side
    77,332.38x = 2,455,416,060.01
  5. Step 5: Solve for x
    x = 2,455,416,060.01/77,332.38
  6. Step 6: Final answer
    x = 31,751.46

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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.