Home / 47,783.60-65,722.12-38,331.44

Finding the Fourth Proportional to 47,783.60, 65,722.12 and 38,331.44

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Solution

The fourth proportional to 47,783.60, 65,722.12 and 38,331.44 is: 52,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,783.60 : 65,722.12 = 38,331.44 : x
  2. Step 2: Convert to fraction form
    47,783.60/65,722.12 = 38,331.44/x
  3. Step 3: Cross multiply
    47,783.60x = 65,722.12 × 38,331.44
  4. Step 4: Simplify right side
    47,783.60x = 2,519,223,499.45
  5. Step 5: Solve for x
    x = 2,519,223,499.45/47,783.60
  6. Step 6: Final answer
    x = 52,721.51

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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.