Home / 55,872.32-77,104.12-30,378.94

Finding the Fourth Proportional to 55,872.32, 77,104.12 and 30,378.94

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Solution

The fourth proportional to 55,872.32, 77,104.12 and 30,378.94 is: 41,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,872.32 : 77,104.12 = 30,378.94 : x
  2. Step 2: Convert to fraction form
    55,872.32/77,104.12 = 30,378.94/x
  3. Step 3: Cross multiply
    55,872.32x = 77,104.12 × 30,378.94
  4. Step 4: Simplify right side
    55,872.32x = 2,342,341,166.53
  5. Step 5: Solve for x
    x = 2,342,341,166.53/55,872.32
  6. Step 6: Final answer
    x = 41,923.10

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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.