Home / 70,195.10-105,277.14-20,264.34

Finding the Fourth Proportional to 70,195.10, 105,277.14 and 20,264.34

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Solution

The fourth proportional to 70,195.10, 105,277.14 and 20,264.34 is: 30,392.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,195.10 : 105,277.14 = 20,264.34 : x
  2. Step 2: Convert to fraction form
    70,195.10/105,277.14 = 20,264.34/x
  3. Step 3: Cross multiply
    70,195.10x = 105,277.14 × 20,264.34
  4. Step 4: Simplify right side
    70,195.10x = 2,133,371,759.19
  5. Step 5: Solve for x
    x = 2,133,371,759.19/70,195.10
  6. Step 6: Final answer
    x = 30,392.03

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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.