Home / 66,020.16-91,107.87-35,805.48

Finding the Fourth Proportional to 66,020.16, 91,107.87 and 35,805.48

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Solution

The fourth proportional to 66,020.16, 91,107.87 and 35,805.48 is: 49,411.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,020.16 : 91,107.87 = 35,805.48 : x
  2. Step 2: Convert to fraction form
    66,020.16/91,107.87 = 35,805.48/x
  3. Step 3: Cross multiply
    66,020.16x = 91,107.87 × 35,805.48
  4. Step 4: Simplify right side
    66,020.16x = 3,262,161,017.13
  5. Step 5: Solve for x
    x = 3,262,161,017.13/66,020.16
  6. Step 6: Final answer
    x = 49,411.59

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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.