Home / 66,495.20-91,761.59-36,280.51

Finding the Fourth Proportional to 66,495.20, 91,761.59 and 36,280.51

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Solution

The fourth proportional to 66,495.20, 91,761.59 and 36,280.51 is: 50,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,495.20 : 91,761.59 = 36,280.51 : x
  2. Step 2: Convert to fraction form
    66,495.20/91,761.59 = 36,280.51/x
  3. Step 3: Cross multiply
    66,495.20x = 91,761.59 × 36,280.51
  4. Step 4: Simplify right side
    66,495.20x = 3,329,157,144.91
  5. Step 5: Solve for x
    x = 3,329,157,144.91/66,495.20
  6. Step 6: Final answer
    x = 50,066.13

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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.