Home / 70,842.20-106,263.12-18,247.28

Finding the Fourth Proportional to 70,842.20, 106,263.12 and 18,247.28

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Solution

The fourth proportional to 70,842.20, 106,263.12 and 18,247.28 is: 27,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,842.20 : 106,263.12 = 18,247.28 : x
  2. Step 2: Convert to fraction form
    70,842.20/106,263.12 = 18,247.28/x
  3. Step 3: Cross multiply
    70,842.20x = 106,263.12 × 18,247.28
  4. Step 4: Simplify right side
    70,842.20x = 1,939,012,904.31
  5. Step 5: Solve for x
    x = 1,939,012,904.31/70,842.20
  6. Step 6: Final answer
    x = 27,370.87

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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.