Home / 47,985.40-66,218.32-26,180.88

Finding the Fourth Proportional to 47,985.40, 66,218.32 and 26,180.88

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Solution

The fourth proportional to 47,985.40, 66,218.32 and 26,180.88 is: 36,128.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,985.40 : 66,218.32 = 26,180.88 : x
  2. Step 2: Convert to fraction form
    47,985.40/66,218.32 = 26,180.88/x
  3. Step 3: Cross multiply
    47,985.40x = 66,218.32 × 26,180.88
  4. Step 4: Simplify right side
    47,985.40x = 1,733,653,889.72
  5. Step 5: Solve for x
    x = 1,733,653,889.72/47,985.40
  6. Step 6: Final answer
    x = 36,128.78

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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.