Home / 63,681.19-87,857.64-38,195.80

Finding the Fourth Proportional to 63,681.19, 87,857.64 and 38,195.80

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Solution

The fourth proportional to 63,681.19, 87,857.64 and 38,195.80 is: 52,696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,681.19 : 87,857.64 = 38,195.80 : x
  2. Step 2: Convert to fraction form
    63,681.19/87,857.64 = 38,195.80/x
  3. Step 3: Cross multiply
    63,681.19x = 87,857.64 × 38,195.80
  4. Step 4: Simplify right side
    63,681.19x = 3,355,793,013.04
  5. Step 5: Solve for x
    x = 3,355,793,013.04/63,681.19
  6. Step 6: Final answer
    x = 52,696.77

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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.