Home / 66,472.83-91,766.36-51,331.50

Finding the Fourth Proportional to 66,472.83, 91,766.36 and 51,331.50

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Solution

The fourth proportional to 66,472.83, 91,766.36 and 51,331.50 is: 70,863.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,472.83 : 91,766.36 = 51,331.50 : x
  2. Step 2: Convert to fraction form
    66,472.83/91,766.36 = 51,331.50/x
  3. Step 3: Cross multiply
    66,472.83x = 91,766.36 × 51,331.50
  4. Step 4: Simplify right side
    66,472.83x = 4,710,505,036.67
  5. Step 5: Solve for x
    x = 4,710,505,036.67/66,472.83
  6. Step 6: Final answer
    x = 70,863.62

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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.