Home / 91,783.12-126,656.20-52,031.44

Finding the Fourth Proportional to 91,783.12, 126,656.20 and 52,031.44

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Solution

The fourth proportional to 91,783.12, 126,656.20 and 52,031.44 is: 71,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,783.12 : 126,656.20 = 52,031.44 : x
  2. Step 2: Convert to fraction form
    91,783.12/126,656.20 = 52,031.44/x
  3. Step 3: Cross multiply
    91,783.12x = 126,656.20 × 52,031.44
  4. Step 4: Simplify right side
    91,783.12x = 6,590,104,470.93
  5. Step 5: Solve for x
    x = 6,590,104,470.93/91,783.12
  6. Step 6: Final answer
    x = 71,800.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.