Home / 68,634.12-94,711.86-38,820.36

Finding the Fourth Proportional to 68,634.12, 94,711.86 and 38,820.36

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Solution

The fourth proportional to 68,634.12, 94,711.86 and 38,820.36 is: 53,570.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,634.12 : 94,711.86 = 38,820.36 : x
  2. Step 2: Convert to fraction form
    68,634.12/94,711.86 = 38,820.36/x
  3. Step 3: Cross multiply
    68,634.12x = 94,711.86 × 38,820.36
  4. Step 4: Simplify right side
    68,634.12x = 3,676,748,501.47
  5. Step 5: Solve for x
    x = 3,676,748,501.47/68,634.12
  6. Step 6: Final answer
    x = 53,570.27

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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.