Home / 47,420.30-65,441.68-31,301.76

Finding the Fourth Proportional to 47,420.30, 65,441.68 and 31,301.76

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Solution

The fourth proportional to 47,420.30, 65,441.68 and 31,301.76 is: 43,197.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,420.30 : 65,441.68 = 31,301.76 : x
  2. Step 2: Convert to fraction form
    47,420.30/65,441.68 = 31,301.76/x
  3. Step 3: Cross multiply
    47,420.30x = 65,441.68 × 31,301.76
  4. Step 4: Simplify right side
    47,420.30x = 2,048,439,761.36
  5. Step 5: Solve for x
    x = 2,048,439,761.36/47,420.30
  6. Step 6: Final answer
    x = 43,197.53

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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.