Home / 47,128.09-70,700.80-15,540.02

Finding the Fourth Proportional to 47,128.09, 70,700.80 and 15,540.02

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Solution

The fourth proportional to 47,128.09, 70,700.80 and 15,540.02 is: 23,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128.09 : 70,700.80 = 15,540.02 : x
  2. Step 2: Convert to fraction form
    47,128.09/70,700.80 = 15,540.02/x
  3. Step 3: Cross multiply
    47,128.09x = 70,700.80 × 15,540.02
  4. Step 4: Simplify right side
    47,128.09x = 1,098,691,846.02
  5. Step 5: Solve for x
    x = 1,098,691,846.02/47,128.09
  6. Step 6: Final answer
    x = 23,312.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.