Home / 66,265.84-91,440.03-39,403.16

Finding the Fourth Proportional to 66,265.84, 91,440.03 and 39,403.16

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Solution

The fourth proportional to 66,265.84, 91,440.03 and 39,403.16 is: 54,372.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,265.84 : 91,440.03 = 39,403.16 : x
  2. Step 2: Convert to fraction form
    66,265.84/91,440.03 = 39,403.16/x
  3. Step 3: Cross multiply
    66,265.84x = 91,440.03 × 39,403.16
  4. Step 4: Simplify right side
    66,265.84x = 3,603,026,165.96
  5. Step 5: Solve for x
    x = 3,603,026,165.96/66,265.84
  6. Step 6: Final answer
    x = 54,372.30

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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.