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Finding the Fourth Proportional to 77,774.70, 116,370.45 and 51,530.70

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Solution

The fourth proportional to 77,774.70, 116,370.45 and 51,530.70 is: 77,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,774.70 : 116,370.45 = 51,530.70 : x
  2. Step 2: Convert to fraction form
    77,774.70/116,370.45 = 51,530.70/x
  3. Step 3: Cross multiply
    77,774.70x = 116,370.45 × 51,530.70
  4. Step 4: Simplify right side
    77,774.70x = 5,996,650,747.82
  5. Step 5: Solve for x
    x = 5,996,650,747.82/77,774.70
  6. Step 6: Final answer
    x = 77,102.85

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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.