Home / 66,639.12-91,959.45-36,424.17

Finding the Fourth Proportional to 66,639.12, 91,959.45 and 36,424.17

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Solution

The fourth proportional to 66,639.12, 91,959.45 and 36,424.17 is: 50,263.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,639.12 : 91,959.45 = 36,424.17 : x
  2. Step 2: Convert to fraction form
    66,639.12/91,959.45 = 36,424.17/x
  3. Step 3: Cross multiply
    66,639.12x = 91,959.45 × 36,424.17
  4. Step 4: Simplify right side
    66,639.12x = 3,349,546,639.91
  5. Step 5: Solve for x
    x = 3,349,546,639.91/66,639.12
  6. Step 6: Final answer
    x = 50,263.97

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1.5x scale

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.