Home / 75,118.39-112,511.50-51,369.66

Finding the Fourth Proportional to 75,118.39, 112,511.50 and 51,369.66

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Solution

The fourth proportional to 75,118.39, 112,511.50 and 51,369.66 is: 76,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,118.39 : 112,511.50 = 51,369.66 : x
  2. Step 2: Convert to fraction form
    75,118.39/112,511.50 = 51,369.66/x
  3. Step 3: Cross multiply
    75,118.39x = 112,511.50 × 51,369.66
  4. Step 4: Simplify right side
    75,118.39x = 5,779,677,372.67
  5. Step 5: Solve for x
    x = 5,779,677,372.67/75,118.39
  6. Step 6: Final answer
    x = 76,940.91

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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.