Home / 66,980.16-92,428.82-40,116.52

Finding the Fourth Proportional to 66,980.16, 92,428.82 and 40,116.52

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Solution

The fourth proportional to 66,980.16, 92,428.82 and 40,116.52 is: 55,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,980.16 : 92,428.82 = 40,116.52 : x
  2. Step 2: Convert to fraction form
    66,980.16/92,428.82 = 40,116.52/x
  3. Step 3: Cross multiply
    66,980.16x = 92,428.82 × 40,116.52
  4. Step 4: Simplify right side
    66,980.16x = 3,707,922,606.11
  5. Step 5: Solve for x
    x = 3,707,922,606.11/66,980.16
  6. Step 6: Final answer
    x = 55,358.52

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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.