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Finding the Fourth Proportional to 92,910.64, 139,385.84 and 28,867.44

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Solution

The fourth proportional to 92,910.64, 139,385.84 and 28,867.44 is: 43,307.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,910.64 : 139,385.84 = 28,867.44 : x
  2. Step 2: Convert to fraction form
    92,910.64/139,385.84 = 28,867.44/x
  3. Step 3: Cross multiply
    92,910.64x = 139,385.84 × 28,867.44
  4. Step 4: Simplify right side
    92,910.64x = 4,023,712,373.05
  5. Step 5: Solve for x
    x = 4,023,712,373.05/92,910.64
  6. Step 6: Final answer
    x = 43,307.34

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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.