Home / 68,420.11-94,411.41-38,207.11

Finding the Fourth Proportional to 68,420.11, 94,411.41 and 38,207.11

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Solution

The fourth proportional to 68,420.11, 94,411.41 and 38,207.11 is: 52,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,420.11 : 94,411.41 = 38,207.11 : x
  2. Step 2: Convert to fraction form
    68,420.11/94,411.41 = 38,207.11/x
  3. Step 3: Cross multiply
    68,420.11x = 94,411.41 × 38,207.11
  4. Step 4: Simplify right side
    68,420.11x = 3,607,187,127.13
  5. Step 5: Solve for x
    x = 3,607,187,127.13/68,420.11
  6. Step 6: Final answer
    x = 52,721.15

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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.