Home / 70,365.12-105,550.96-39,176.88

Finding the Fourth Proportional to 70,365.12, 105,550.96 and 39,176.88

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Solution

The fourth proportional to 70,365.12, 105,550.96 and 39,176.88 is: 58,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,365.12 : 105,550.96 = 39,176.88 : x
  2. Step 2: Convert to fraction form
    70,365.12/105,550.96 = 39,176.88/x
  3. Step 3: Cross multiply
    70,365.12x = 105,550.96 × 39,176.88
  4. Step 4: Simplify right side
    70,365.12x = 4,135,157,293.80
  5. Step 5: Solve for x
    x = 4,135,157,293.80/70,365.12
  6. Step 6: Final answer
    x = 58,767.15

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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.