Home / 72,575.52-100,154.34-40,744.64

Finding the Fourth Proportional to 72,575.52, 100,154.34 and 40,744.64

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Solution

The fourth proportional to 72,575.52, 100,154.34 and 40,744.64 is: 56,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,575.52 : 100,154.34 = 40,744.64 : x
  2. Step 2: Convert to fraction form
    72,575.52/100,154.34 = 40,744.64/x
  3. Step 3: Cross multiply
    72,575.52x = 100,154.34 × 40,744.64
  4. Step 4: Simplify right side
    72,575.52x = 4,080,752,527.74
  5. Step 5: Solve for x
    x = 4,080,752,527.74/72,575.52
  6. Step 6: Final answer
    x = 56,227.67

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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.