Home / 70,263.45-105,400.64-20,344.26

Finding the Fourth Proportional to 70,263.45, 105,400.64 and 20,344.26

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Solution

The fourth proportional to 70,263.45, 105,400.64 and 20,344.26 is: 30,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,263.45 : 105,400.64 = 20,344.26 : x
  2. Step 2: Convert to fraction form
    70,263.45/105,400.64 = 20,344.26/x
  3. Step 3: Cross multiply
    70,263.45x = 105,400.64 × 20,344.26
  4. Step 4: Simplify right side
    70,263.45x = 2,144,298,470.44
  5. Step 5: Solve for x
    x = 2,144,298,470.44/70,263.45
  6. Step 6: Final answer
    x = 30,517.98

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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.