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Finding the Fourth Proportional to 45,602.90, 68,404.35 and 28,015.70

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Solution

The fourth proportional to 45,602.90, 68,404.35 and 28,015.70 is: 42,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,602.90 : 68,404.35 = 28,015.70 : x
  2. Step 2: Convert to fraction form
    45,602.90/68,404.35 = 28,015.70/x
  3. Step 3: Cross multiply
    45,602.90x = 68,404.35 × 28,015.70
  4. Step 4: Simplify right side
    45,602.90x = 1,916,395,748.30
  5. Step 5: Solve for x
    x = 1,916,395,748.30/45,602.90
  6. Step 6: Final answer
    x = 42,023.55

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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.