Home / 40,499.68-60,709.20-28,161.76

Finding the Fourth Proportional to 40,499.68, 60,709.20 and 28,161.76

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Solution

The fourth proportional to 40,499.68, 60,709.20 and 28,161.76 is: 42,214.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,499.68 : 60,709.20 = 28,161.76 : x
  2. Step 2: Convert to fraction form
    40,499.68/60,709.20 = 28,161.76/x
  3. Step 3: Cross multiply
    40,499.68x = 60,709.20 × 28,161.76
  4. Step 4: Simplify right side
    40,499.68x = 1,709,677,920.19
  5. Step 5: Solve for x
    x = 1,709,677,920.19/40,499.68
  6. Step 6: Final answer
    x = 42,214.60

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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.