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Finding the Fourth Proportional to 68,648.46, 94,730.29 and 38,428.67

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Solution

The fourth proportional to 68,648.46, 94,730.29 and 38,428.67 is: 53,029.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,648.46 : 94,730.29 = 38,428.67 : x
  2. Step 2: Convert to fraction form
    68,648.46/94,730.29 = 38,428.67/x
  3. Step 3: Cross multiply
    68,648.46x = 94,730.29 × 38,428.67
  4. Step 4: Simplify right side
    68,648.46x = 3,640,359,053.41
  5. Step 5: Solve for x
    x = 3,640,359,053.41/68,648.46
  6. Step 6: Final answer
    x = 53,029.00

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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.