Home / 78,857.26-108,818.85-43,040.32

Finding the Fourth Proportional to 78,857.26, 108,818.85 and 43,040.32

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Solution

The fourth proportional to 78,857.26, 108,818.85 and 43,040.32 is: 59,393.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,857.26 : 108,818.85 = 43,040.32 : x
  2. Step 2: Convert to fraction form
    78,857.26/108,818.85 = 43,040.32/x
  3. Step 3: Cross multiply
    78,857.26x = 108,818.85 × 43,040.32
  4. Step 4: Simplify right side
    78,857.26x = 4,683,598,126.03
  5. Step 5: Solve for x
    x = 4,683,598,126.03/78,857.26
  6. Step 6: Final answer
    x = 59,393.37

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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.