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Finding the Fourth Proportional to 85,602.62, 118,128.38 and 47,363.78

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Solution

The fourth proportional to 85,602.62, 118,128.38 and 47,363.78 is: 65,360.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,602.62 : 118,128.38 = 47,363.78 : x
  2. Step 2: Convert to fraction form
    85,602.62/118,128.38 = 47,363.78/x
  3. Step 3: Cross multiply
    85,602.62x = 118,128.38 × 47,363.78
  4. Step 4: Simplify right side
    85,602.62x = 5,595,006,602.08
  5. Step 5: Solve for x
    x = 5,595,006,602.08/85,602.62
  6. Step 6: Final answer
    x = 65,360.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.