Home / 70,209.36-105,314.18-20,293.48

Finding the Fourth Proportional to 70,209.36, 105,314.18 and 20,293.48

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Solution

The fourth proportional to 70,209.36, 105,314.18 and 20,293.48 is: 30,440.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,209.36 : 105,314.18 = 20,293.48 : x
  2. Step 2: Convert to fraction form
    70,209.36/105,314.18 = 20,293.48/x
  3. Step 3: Cross multiply
    70,209.36x = 105,314.18 × 20,293.48
  4. Step 4: Simplify right side
    70,209.36x = 2,137,191,205.55
  5. Step 5: Solve for x
    x = 2,137,191,205.55/70,209.36
  6. Step 6: Final answer
    x = 30,440.26

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1.5x scale

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.