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Finding the Fourth Proportional to 70,013.22, 96,624 and 39,808.06

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Solution

The fourth proportional to 70,013.22, 96,624 and 39,808.06 is: 54,938.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,013.22 : 96,624 = 39,808.06 : x
  2. Step 2: Convert to fraction form
    70,013.22/96,624 = 39,808.06/x
  3. Step 3: Cross multiply
    70,013.22x = 96,624 × 39,808.06
  4. Step 4: Simplify right side
    70,013.22x = 3,846,413,989.44
  5. Step 5: Solve for x
    x = 3,846,413,989.44/70,013.22
  6. Step 6: Final answer
    x = 54,938.40

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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.