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Finding the Fourth Proportional to 85,676.86, 118,239.51 and 47,963.26

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Solution

The fourth proportional to 85,676.86, 118,239.51 and 47,963.26 is: 66,192.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,676.86 : 118,239.51 = 47,963.26 : x
  2. Step 2: Convert to fraction form
    85,676.86/118,239.51 = 47,963.26/x
  3. Step 3: Cross multiply
    85,676.86x = 118,239.51 × 47,963.26
  4. Step 4: Simplify right side
    85,676.86x = 5,671,152,360.40
  5. Step 5: Solve for x
    x = 5,671,152,360.40/85,676.86
  6. Step 6: Final answer
    x = 66,192.35

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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.