Home / 74,910.30-112,408.65-28,196.70

Finding the Fourth Proportional to 74,910.30, 112,408.65 and 28,196.70

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Solution

The fourth proportional to 74,910.30, 112,408.65 and 28,196.70 is: 42,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,910.30 : 112,408.65 = 28,196.70 : x
  2. Step 2: Convert to fraction form
    74,910.30/112,408.65 = 28,196.70/x
  3. Step 3: Cross multiply
    74,910.30x = 112,408.65 × 28,196.70
  4. Step 4: Simplify right side
    74,910.30x = 3,169,552,981.46
  5. Step 5: Solve for x
    x = 3,169,552,981.46/74,910.30
  6. Step 6: Final answer
    x = 42,311.31

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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.