Home / 75,764.07-113,646.06-31,378.86

Finding the Fourth Proportional to 75,764.07, 113,646.06 and 31,378.86

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Solution

The fourth proportional to 75,764.07, 113,646.06 and 31,378.86 is: 47,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,764.07 : 113,646.06 = 31,378.86 : x
  2. Step 2: Convert to fraction form
    75,764.07/113,646.06 = 31,378.86/x
  3. Step 3: Cross multiply
    75,764.07x = 113,646.06 × 31,378.86
  4. Step 4: Simplify right side
    75,764.07x = 3,566,083,806.29
  5. Step 5: Solve for x
    x = 3,566,083,806.29/75,764.07
  6. Step 6: Final answer
    x = 47,068.27

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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.