Home / 47,121.08-65,020.80-29,209.55

Finding the Fourth Proportional to 47,121.08, 65,020.80 and 29,209.55

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Solution

The fourth proportional to 47,121.08, 65,020.80 and 29,209.55 is: 40,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,121.08 : 65,020.80 = 29,209.55 : x
  2. Step 2: Convert to fraction form
    47,121.08/65,020.80 = 29,209.55/x
  3. Step 3: Cross multiply
    47,121.08x = 65,020.80 × 29,209.55
  4. Step 4: Simplify right side
    47,121.08x = 1,899,228,308.64
  5. Step 5: Solve for x
    x = 1,899,228,308.64/47,121.08
  6. Step 6: Final answer
    x = 40,305.28

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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.