Home / 96,930.81-133,771.30-56,649.00

Finding the Fourth Proportional to 96,930.81, 133,771.30 and 56,649.00

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Solution

The fourth proportional to 96,930.81, 133,771.30 and 56,649.00 is: 78,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,930.81 : 133,771.30 = 56,649.00 : x
  2. Step 2: Convert to fraction form
    96,930.81/133,771.30 = 56,649.00/x
  3. Step 3: Cross multiply
    96,930.81x = 133,771.30 × 56,649.00
  4. Step 4: Simplify right side
    96,930.81x = 7,578,010,733.72
  5. Step 5: Solve for x
    x = 7,578,010,733.72/96,930.81
  6. Step 6: Final answer
    x = 78,179.59

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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.