Home / 75,411.58-113,131.95-28,660.81

Finding the Fourth Proportional to 75,411.58, 113,131.95 and 28,660.81

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Solution

The fourth proportional to 75,411.58, 113,131.95 and 28,660.81 is: 42,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,411.58 : 113,131.95 = 28,660.81 : x
  2. Step 2: Convert to fraction form
    75,411.58/113,131.95 = 28,660.81/x
  3. Step 3: Cross multiply
    75,411.58x = 113,131.95 × 28,660.81
  4. Step 4: Simplify right side
    75,411.58x = 3,242,453,323.88
  5. Step 5: Solve for x
    x = 3,242,453,323.88/75,411.58
  6. Step 6: Final answer
    x = 42,996.76

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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.