Home / 75,065.72-112,644.77-30,692.70

Finding the Fourth Proportional to 75,065.72, 112,644.77 and 30,692.70

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Solution

The fourth proportional to 75,065.72, 112,644.77 and 30,692.70 is: 46,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,065.72 : 112,644.77 = 30,692.70 : x
  2. Step 2: Convert to fraction form
    75,065.72/112,644.77 = 30,692.70/x
  3. Step 3: Cross multiply
    75,065.72x = 112,644.77 × 30,692.70
  4. Step 4: Simplify right side
    75,065.72x = 3,457,371,978.72
  5. Step 5: Solve for x
    x = 3,457,371,978.72/75,065.72
  6. Step 6: Final answer
    x = 46,057.94

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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.