Home / 77,785.20-116,677.80-25,196.40

Finding the Fourth Proportional to 77,785.20, 116,677.80 and 25,196.40

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Solution

The fourth proportional to 77,785.20, 116,677.80 and 25,196.40 is: 37,794.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,785.20 : 116,677.80 = 25,196.40 : x
  2. Step 2: Convert to fraction form
    77,785.20/116,677.80 = 25,196.40/x
  3. Step 3: Cross multiply
    77,785.20x = 116,677.80 × 25,196.40
  4. Step 4: Simplify right side
    77,785.20x = 2,939,860,519.92
  5. Step 5: Solve for x
    x = 2,939,860,519.92/77,785.20
  6. Step 6: Final answer
    x = 37,794.60

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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.