Home / 77,801.20-116,604.60-57,000.40

Finding the Fourth Proportional to 77,801.20, 116,604.60 and 57,000.40

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Solution

The fourth proportional to 77,801.20, 116,604.60 and 57,000.40 is: 85,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,801.20 : 116,604.60 = 57,000.40 : x
  2. Step 2: Convert to fraction form
    77,801.20/116,604.60 = 57,000.40/x
  3. Step 3: Cross multiply
    77,801.20x = 116,604.60 × 57,000.40
  4. Step 4: Simplify right side
    77,801.20x = 6,646,508,841.84
  5. Step 5: Solve for x
    x = 6,646,508,841.84/77,801.20
  6. Step 6: Final answer
    x = 85,429.39

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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.