Home / 71,265.88-98,342.80-39,433.18

Finding the Fourth Proportional to 71,265.88, 98,342.80 and 39,433.18

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Solution

The fourth proportional to 71,265.88, 98,342.80 and 39,433.18 is: 54,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,265.88 : 98,342.80 = 39,433.18 : x
  2. Step 2: Convert to fraction form
    71,265.88/98,342.80 = 39,433.18/x
  3. Step 3: Cross multiply
    71,265.88x = 98,342.80 × 39,433.18
  4. Step 4: Simplify right side
    71,265.88x = 3,877,969,334.10
  5. Step 5: Solve for x
    x = 3,877,969,334.10/71,265.88
  6. Step 6: Final answer
    x = 54,415.51

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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.