Home / 70,948.64-106,448.40-30,405.14

Finding the Fourth Proportional to 70,948.64, 106,448.40 and 30,405.14

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Solution

The fourth proportional to 70,948.64, 106,448.40 and 30,405.14 is: 45,618.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,948.64 : 106,448.40 = 30,405.14 : x
  2. Step 2: Convert to fraction form
    70,948.64/106,448.40 = 30,405.14/x
  3. Step 3: Cross multiply
    70,948.64x = 106,448.40 × 30,405.14
  4. Step 4: Simplify right side
    70,948.64x = 3,236,578,504.78
  5. Step 5: Solve for x
    x = 3,236,578,504.78/70,948.64
  6. Step 6: Final answer
    x = 45,618.61

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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.