Home / 66,966.96-92,379.54-39,727.20

Finding the Fourth Proportional to 66,966.96, 92,379.54 and 39,727.20

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Solution

The fourth proportional to 66,966.96, 92,379.54 and 39,727.20 is: 54,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,966.96 : 92,379.54 = 39,727.20 : x
  2. Step 2: Convert to fraction form
    66,966.96/92,379.54 = 39,727.20/x
  3. Step 3: Cross multiply
    66,966.96x = 92,379.54 × 39,727.20
  4. Step 4: Simplify right side
    66,966.96x = 3,669,980,461.49
  5. Step 5: Solve for x
    x = 3,669,980,461.49/66,966.96
  6. Step 6: Final answer
    x = 54,802.85

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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.