Home / 51,981.32-77,981.58-16,451.59

Finding the Fourth Proportional to 51,981.32, 77,981.58 and 16,451.59

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Solution

The fourth proportional to 51,981.32, 77,981.58 and 16,451.59 is: 24,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,981.32 : 77,981.58 = 16,451.59 : x
  2. Step 2: Convert to fraction form
    51,981.32/77,981.58 = 16,451.59/x
  3. Step 3: Cross multiply
    51,981.32x = 77,981.58 × 16,451.59
  4. Step 4: Simplify right side
    51,981.32x = 1,282,920,786.76
  5. Step 5: Solve for x
    x = 1,282,920,786.76/51,981.32
  6. Step 6: Final answer
    x = 24,680.42

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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.