Home / 66,020.40-91,112.75-37,340.22

Finding the Fourth Proportional to 66,020.40, 91,112.75 and 37,340.22

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Solution

The fourth proportional to 66,020.40, 91,112.75 and 37,340.22 is: 51,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,020.40 : 91,112.75 = 37,340.22 : x
  2. Step 2: Convert to fraction form
    66,020.40/91,112.75 = 37,340.22/x
  3. Step 3: Cross multiply
    66,020.40x = 91,112.75 × 37,340.22
  4. Step 4: Simplify right side
    66,020.40x = 3,402,169,943.10
  5. Step 5: Solve for x
    x = 3,402,169,943.10/66,020.40
  6. Step 6: Final answer
    x = 51,532.10

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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.