Home / 75,077.79-112,624.56-30,697.47

Finding the Fourth Proportional to 75,077.79, 112,624.56 and 30,697.47

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Solution

The fourth proportional to 75,077.79, 112,624.56 and 30,697.47 is: 46,049.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,077.79 : 112,624.56 = 30,697.47 : x
  2. Step 2: Convert to fraction form
    75,077.79/112,624.56 = 30,697.47/x
  3. Step 3: Cross multiply
    75,077.79x = 112,624.56 × 30,697.47
  4. Step 4: Simplify right side
    75,077.79x = 3,457,289,051.86
  5. Step 5: Solve for x
    x = 3,457,289,051.86/75,077.79
  6. Step 6: Final answer
    x = 46,049.42

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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.