Home / 75,407.76-113,009.58-28,635.12

Finding the Fourth Proportional to 75,407.76, 113,009.58 and 28,635.12

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Solution

The fourth proportional to 75,407.76, 113,009.58 and 28,635.12 is: 42,913.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,407.76 : 113,009.58 = 28,635.12 : x
  2. Step 2: Convert to fraction form
    75,407.76/113,009.58 = 28,635.12/x
  3. Step 3: Cross multiply
    75,407.76x = 113,009.58 × 28,635.12
  4. Step 4: Simplify right side
    75,407.76x = 3,236,042,884.45
  5. Step 5: Solve for x
    x = 3,236,042,884.45/75,407.76
  6. Step 6: Final answer
    x = 42,913.92

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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.