Home / 47,778.98-65,944.13-31,646.48

Finding the Fourth Proportional to 47,778.98, 65,944.13 and 31,646.48

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Solution

The fourth proportional to 47,778.98, 65,944.13 and 31,646.48 is: 43,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,778.98 : 65,944.13 = 31,646.48 : x
  2. Step 2: Convert to fraction form
    47,778.98/65,944.13 = 31,646.48/x
  3. Step 3: Cross multiply
    47,778.98x = 65,944.13 × 31,646.48
  4. Step 4: Simplify right side
    47,778.98x = 2,086,899,103.21
  5. Step 5: Solve for x
    x = 2,086,899,103.21/47,778.98
  6. Step 6: Final answer
    x = 43,678.19

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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.