Home / 68,630.49-94,711.68-38,415.06

Finding the Fourth Proportional to 68,630.49, 94,711.68 and 38,415.06

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Solution

The fourth proportional to 68,630.49, 94,711.68 and 38,415.06 is: 53,013.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,630.49 : 94,711.68 = 38,415.06 : x
  2. Step 2: Convert to fraction form
    68,630.49/94,711.68 = 38,415.06/x
  3. Step 3: Cross multiply
    68,630.49x = 94,711.68 × 38,415.06
  4. Step 4: Simplify right side
    68,630.49x = 3,638,354,869.90
  5. Step 5: Solve for x
    x = 3,638,354,869.90/68,630.49
  6. Step 6: Final answer
    x = 53,013.68

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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.