Home / 91,926.36-126,872.10-56,136.96

Finding the Fourth Proportional to 91,926.36, 126,872.10 and 56,136.96

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Solution

The fourth proportional to 91,926.36, 126,872.10 and 56,136.96 is: 77,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,926.36 : 126,872.10 = 56,136.96 : x
  2. Step 2: Convert to fraction form
    91,926.36/126,872.10 = 56,136.96/x
  3. Step 3: Cross multiply
    91,926.36x = 126,872.10 × 56,136.96
  4. Step 4: Simplify right side
    91,926.36x = 7,122,214,002.82
  5. Step 5: Solve for x
    x = 7,122,214,002.82/91,926.36
  6. Step 6: Final answer
    x = 77,477.39

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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.