Home / 68,381.06-94,370.62-38,172.28

Finding the Fourth Proportional to 68,381.06, 94,370.62 and 38,172.28

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Solution

The fourth proportional to 68,381.06, 94,370.62 and 38,172.28 is: 52,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,381.06 : 94,370.62 = 38,172.28 : x
  2. Step 2: Convert to fraction form
    68,381.06/94,370.62 = 38,172.28/x
  3. Step 3: Cross multiply
    68,381.06x = 94,370.62 × 38,172.28
  4. Step 4: Simplify right side
    68,381.06x = 3,602,341,730.41
  5. Step 5: Solve for x
    x = 3,602,341,730.41/68,381.06
  6. Step 6: Final answer
    x = 52,680.40

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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.