Home / 77,989.77-116,994.38-25,385.13

Finding the Fourth Proportional to 77,989.77, 116,994.38 and 25,385.13

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Solution

The fourth proportional to 77,989.77, 116,994.38 and 25,385.13 is: 38,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,989.77 : 116,994.38 = 25,385.13 : x
  2. Step 2: Convert to fraction form
    77,989.77/116,994.38 = 25,385.13/x
  3. Step 3: Cross multiply
    77,989.77x = 116,994.38 × 25,385.13
  4. Step 4: Simplify right side
    77,989.77x = 2,969,917,418.64
  5. Step 5: Solve for x
    x = 2,969,917,418.64/77,989.77
  6. Step 6: Final answer
    x = 38,080.86

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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.