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Finding the Fourth Proportional to 45,447.92, 62,700.70 and 28,212.20

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Solution

The fourth proportional to 45,447.92, 62,700.70 and 28,212.20 is: 38,922.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,447.92 : 62,700.70 = 28,212.20 : x
  2. Step 2: Convert to fraction form
    45,447.92/62,700.70 = 28,212.20/x
  3. Step 3: Cross multiply
    45,447.92x = 62,700.70 × 28,212.20
  4. Step 4: Simplify right side
    45,447.92x = 1,768,924,688.54
  5. Step 5: Solve for x
    x = 1,768,924,688.54/45,447.92
  6. Step 6: Final answer
    x = 38,922.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.