Home / 70,214.48-105,351-30,799.88

Finding the Fourth Proportional to 70,214.48, 105,351 and 30,799.88

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Solution

The fourth proportional to 70,214.48, 105,351 and 30,799.88 is: 46,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,214.48 : 105,351 = 30,799.88 : x
  2. Step 2: Convert to fraction form
    70,214.48/105,351 = 30,799.88/x
  3. Step 3: Cross multiply
    70,214.48x = 105,351 × 30,799.88
  4. Step 4: Simplify right side
    70,214.48x = 3,244,798,157.88
  5. Step 5: Solve for x
    x = 3,244,798,157.88/70,214.48
  6. Step 6: Final answer
    x = 46,212.66

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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.