Home / 71,439.16-107,148.21-18,852.34

Finding the Fourth Proportional to 71,439.16, 107,148.21 and 18,852.34

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Solution

The fourth proportional to 71,439.16, 107,148.21 and 18,852.34 is: 28,275.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,439.16 : 107,148.21 = 18,852.34 : x
  2. Step 2: Convert to fraction form
    71,439.16/107,148.21 = 18,852.34/x
  3. Step 3: Cross multiply
    71,439.16x = 107,148.21 × 18,852.34
  4. Step 4: Simplify right side
    71,439.16x = 2,019,994,485.31
  5. Step 5: Solve for x
    x = 2,019,994,485.31/71,439.16
  6. Step 6: Final answer
    x = 28,275.73

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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.