Home / 65,677.05-90,630.56-38,822.11

Finding the Fourth Proportional to 65,677.05, 90,630.56 and 38,822.11

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Solution

The fourth proportional to 65,677.05, 90,630.56 and 38,822.11 is: 53,572.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,677.05 : 90,630.56 = 38,822.11 : x
  2. Step 2: Convert to fraction form
    65,677.05/90,630.56 = 38,822.11/x
  3. Step 3: Cross multiply
    65,677.05x = 90,630.56 × 38,822.11
  4. Step 4: Simplify right side
    65,677.05x = 3,518,469,440.16
  5. Step 5: Solve for x
    x = 3,518,469,440.16/65,677.05
  6. Step 6: Final answer
    x = 53,572.28

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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.