Home / 66,342.09-91,551.18-37,661.50

Finding the Fourth Proportional to 66,342.09, 91,551.18 and 37,661.50

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Solution

The fourth proportional to 66,342.09, 91,551.18 and 37,661.50 is: 51,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,342.09 : 91,551.18 = 37,661.50 : x
  2. Step 2: Convert to fraction form
    66,342.09/91,551.18 = 37,661.50/x
  3. Step 3: Cross multiply
    66,342.09x = 91,551.18 × 37,661.50
  4. Step 4: Simplify right side
    66,342.09x = 3,447,954,577.26
  5. Step 5: Solve for x
    x = 3,447,954,577.26/66,342.09
  6. Step 6: Final answer
    x = 51,972.35

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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.