Home / 85,221.36-117,818.04-63,963.72

Finding the Fourth Proportional to 85,221.36, 117,818.04 and 63,963.72

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Solution

The fourth proportional to 85,221.36, 117,818.04 and 63,963.72 is: 88,429.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,221.36 : 117,818.04 = 63,963.72 : x
  2. Step 2: Convert to fraction form
    85,221.36/117,818.04 = 63,963.72/x
  3. Step 3: Cross multiply
    85,221.36x = 117,818.04 × 63,963.72
  4. Step 4: Simplify right side
    85,221.36x = 7,536,080,121.51
  5. Step 5: Solve for x
    x = 7,536,080,121.51/85,221.36
  6. Step 6: Final answer
    x = 88,429.47

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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.