Home / 70,530.47-105,795.22-17,939.49

Finding the Fourth Proportional to 70,530.47, 105,795.22 and 17,939.49

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Solution

The fourth proportional to 70,530.47, 105,795.22 and 17,939.49 is: 26,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,530.47 : 105,795.22 = 17,939.49 : x
  2. Step 2: Convert to fraction form
    70,530.47/105,795.22 = 17,939.49/x
  3. Step 3: Cross multiply
    70,530.47x = 105,795.22 × 17,939.49
  4. Step 4: Simplify right side
    70,530.47x = 1,897,912,291.24
  5. Step 5: Solve for x
    x = 1,897,912,291.24/70,530.47
  6. Step 6: Final answer
    x = 26,909.11

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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.