Home / 70,233.21-105,341.72-17,638.70

Finding the Fourth Proportional to 70,233.21, 105,341.72 and 17,638.70

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Solution

The fourth proportional to 70,233.21, 105,341.72 and 17,638.70 is: 26,456.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,233.21 : 105,341.72 = 17,638.70 : x
  2. Step 2: Convert to fraction form
    70,233.21/105,341.72 = 17,638.70/x
  3. Step 3: Cross multiply
    70,233.21x = 105,341.72 × 17,638.70
  4. Step 4: Simplify right side
    70,233.21x = 1,858,090,381.66
  5. Step 5: Solve for x
    x = 1,858,090,381.66/70,233.21
  6. Step 6: Final answer
    x = 26,456.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.