Home / 91,920.96-137,783.16-47,536.20

Finding the Fourth Proportional to 91,920.96, 137,783.16 and 47,536.20

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Solution

The fourth proportional to 91,920.96, 137,783.16 and 47,536.20 is: 71,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,920.96 : 137,783.16 = 47,536.20 : x
  2. Step 2: Convert to fraction form
    91,920.96/137,783.16 = 47,536.20/x
  3. Step 3: Cross multiply
    91,920.96x = 137,783.16 × 47,536.20
  4. Step 4: Simplify right side
    91,920.96x = 6,549,687,850.39
  5. Step 5: Solve for x
    x = 6,549,687,850.39/91,920.96
  6. Step 6: Final answer
    x = 71,253.48

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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.