Home / 75,478.06-113,215.92-19,317.68

Finding the Fourth Proportional to 75,478.06, 113,215.92 and 19,317.68

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Solution

The fourth proportional to 75,478.06, 113,215.92 and 19,317.68 is: 28,976.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,478.06 : 113,215.92 = 19,317.68 : x
  2. Step 2: Convert to fraction form
    75,478.06/113,215.92 = 19,317.68/x
  3. Step 3: Cross multiply
    75,478.06x = 113,215.92 × 19,317.68
  4. Step 4: Simplify right side
    75,478.06x = 2,187,068,913.47
  5. Step 5: Solve for x
    x = 2,187,068,913.47/75,478.06
  6. Step 6: Final answer
    x = 28,976.22

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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.