Home / 75,134.84-112,523.34-43,478.18

Finding the Fourth Proportional to 75,134.84, 112,523.34 and 43,478.18

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Solution

The fourth proportional to 75,134.84, 112,523.34 and 43,478.18 is: 65,113.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,134.84 : 112,523.34 = 43,478.18 : x
  2. Step 2: Convert to fraction form
    75,134.84/112,523.34 = 43,478.18/x
  3. Step 3: Cross multiply
    75,134.84x = 112,523.34 × 43,478.18
  4. Step 4: Simplify right side
    75,134.84x = 4,892,310,053.11
  5. Step 5: Solve for x
    x = 4,892,310,053.11/75,134.84
  6. Step 6: Final answer
    x = 65,113.74

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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.