Home / 91,781.44-126,666.40-53,553.30

Finding the Fourth Proportional to 91,781.44, 126,666.40 and 53,553.30

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Solution

The fourth proportional to 91,781.44, 126,666.40 and 53,553.30 is: 73,908.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,781.44 : 126,666.40 = 53,553.30 : x
  2. Step 2: Convert to fraction form
    91,781.44/126,666.40 = 53,553.30/x
  3. Step 3: Cross multiply
    91,781.44x = 126,666.40 × 53,553.30
  4. Step 4: Simplify right side
    91,781.44x = 6,783,403,926.34
  5. Step 5: Solve for x
    x = 6,783,403,926.34/91,781.44
  6. Step 6: Final answer
    x = 73,908.23

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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.