Home / 75,478.68-104,158.39-43,212.22

Finding the Fourth Proportional to 75,478.68, 104,158.39 and 43,212.22

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Solution

The fourth proportional to 75,478.68, 104,158.39 and 43,212.22 is: 59,631.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,478.68 : 104,158.39 = 43,212.22 : x
  2. Step 2: Convert to fraction form
    75,478.68/104,158.39 = 43,212.22/x
  3. Step 3: Cross multiply
    75,478.68x = 104,158.39 × 43,212.22
  4. Step 4: Simplify right side
    75,478.68x = 4,500,915,263.53
  5. Step 5: Solve for x
    x = 4,500,915,263.53/75,478.68
  6. Step 6: Final answer
    x = 59,631.61

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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.