Home / 77,712.40-116,568.60-25,127.20

Finding the Fourth Proportional to 77,712.40, 116,568.60 and 25,127.20

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Solution

The fourth proportional to 77,712.40, 116,568.60 and 25,127.20 is: 37,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,712.40 : 116,568.60 = 25,127.20 : x
  2. Step 2: Convert to fraction form
    77,712.40/116,568.60 = 25,127.20/x
  3. Step 3: Cross multiply
    77,712.40x = 116,568.60 × 25,127.20
  4. Step 4: Simplify right side
    77,712.40x = 2,929,042,525.92
  5. Step 5: Solve for x
    x = 2,929,042,525.92/77,712.40
  6. Step 6: Final answer
    x = 37,690.80

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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.