Home / 86,108.18-118,824.72-48,380

Finding the Fourth Proportional to 86,108.18, 118,824.72 and 48,380

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Solution

The fourth proportional to 86,108.18, 118,824.72 and 48,380 is: 66,761.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,108.18 : 118,824.72 = 48,380 : x
  2. Step 2: Convert to fraction form
    86,108.18/118,824.72 = 48,380/x
  3. Step 3: Cross multiply
    86,108.18x = 118,824.72 × 48,380
  4. Step 4: Simplify right side
    86,108.18x = 5,748,739,953.60
  5. Step 5: Solve for x
    x = 5,748,739,953.60/86,108.18
  6. Step 6: Final answer
    x = 66,761.83

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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.