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Finding the Fourth Proportional to 78,667.70, 118,001.55 and 50,674.10

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Solution

The fourth proportional to 78,667.70, 118,001.55 and 50,674.10 is: 76,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,667.70 : 118,001.55 = 50,674.10 : x
  2. Step 2: Convert to fraction form
    78,667.70/118,001.55 = 50,674.10/x
  3. Step 3: Cross multiply
    78,667.70x = 118,001.55 × 50,674.10
  4. Step 4: Simplify right side
    78,667.70x = 5,979,622,344.86
  5. Step 5: Solve for x
    x = 5,979,622,344.86/78,667.70
  6. Step 6: Final answer
    x = 76,011.15

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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.