Home / 86,143.50-118,885.32-48,425.04

Finding the Fourth Proportional to 86,143.50, 118,885.32 and 48,425.04

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Solution

The fourth proportional to 86,143.50, 118,885.32 and 48,425.04 is: 66,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,143.50 : 118,885.32 = 48,425.04 : x
  2. Step 2: Convert to fraction form
    86,143.50/118,885.32 = 48,425.04/x
  3. Step 3: Cross multiply
    86,143.50x = 118,885.32 × 48,425.04
  4. Step 4: Simplify right side
    86,143.50x = 5,757,026,376.41
  5. Step 5: Solve for x
    x = 5,757,026,376.41/86,143.50
  6. Step 6: Final answer
    x = 66,830.65

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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.