Home / 56,439.88-84,671.82-21,378.76

Finding the Fourth Proportional to 56,439.88, 84,671.82 and 21,378.76

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Solution

The fourth proportional to 56,439.88, 84,671.82 and 21,378.76 is: 32,072.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,439.88 : 84,671.82 = 21,378.76 : x
  2. Step 2: Convert to fraction form
    56,439.88/84,671.82 = 21,378.76/x
  3. Step 3: Cross multiply
    56,439.88x = 84,671.82 × 21,378.76
  4. Step 4: Simplify right side
    56,439.88x = 1,810,178,518.54
  5. Step 5: Solve for x
    x = 1,810,178,518.54/56,439.88
  6. Step 6: Final answer
    x = 32,072.69

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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.