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Finding the Fourth Proportional to 85,982, 118,655.16 and 48,256.25

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Solution

The fourth proportional to 85,982, 118,655.16 and 48,256.25 is: 66,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,982 : 118,655.16 = 48,256.25 : x
  2. Step 2: Convert to fraction form
    85,982/118,655.16 = 48,256.25/x
  3. Step 3: Cross multiply
    85,982x = 118,655.16 × 48,256.25
  4. Step 4: Simplify right side
    85,982x = 5,725,853,064.75
  5. Step 5: Solve for x
    x = 5,725,853,064.75/85,982
  6. Step 6: Final answer
    x = 66,593.63

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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.