Home / 77,983.27-116,990.70-25,378.63

Finding the Fourth Proportional to 77,983.27, 116,990.70 and 25,378.63

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Solution

The fourth proportional to 77,983.27, 116,990.70 and 25,378.63 is: 38,073.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,983.27 : 116,990.70 = 25,378.63 : x
  2. Step 2: Convert to fraction form
    77,983.27/116,990.70 = 25,378.63/x
  3. Step 3: Cross multiply
    77,983.27x = 116,990.70 × 25,378.63
  4. Step 4: Simplify right side
    77,983.27x = 2,969,063,688.74
  5. Step 5: Solve for x
    x = 2,969,063,688.74/77,983.27
  6. Step 6: Final answer
    x = 38,073.09

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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.