Home / 66,274.22-91,428.21-39,401.46

Finding the Fourth Proportional to 66,274.22, 91,428.21 and 39,401.46

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Solution

The fourth proportional to 66,274.22, 91,428.21 and 39,401.46 is: 54,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,274.22 : 91,428.21 = 39,401.46 : x
  2. Step 2: Convert to fraction form
    66,274.22/91,428.21 = 39,401.46/x
  3. Step 3: Cross multiply
    66,274.22x = 91,428.21 × 39,401.46
  4. Step 4: Simplify right side
    66,274.22x = 3,602,404,959.19
  5. Step 5: Solve for x
    x = 3,602,404,959.19/66,274.22
  6. Step 6: Final answer
    x = 54,356.05

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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.