Home / 85,981.17-118,654.08-48,255.42

Finding the Fourth Proportional to 85,981.17, 118,654.08 and 48,255.42

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Solution

The fourth proportional to 85,981.17, 118,654.08 and 48,255.42 is: 66,592.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,981.17 : 118,654.08 = 48,255.42 : x
  2. Step 2: Convert to fraction form
    85,981.17/118,654.08 = 48,255.42/x
  3. Step 3: Cross multiply
    85,981.17x = 118,654.08 × 48,255.42
  4. Step 4: Simplify right side
    85,981.17x = 5,725,702,465.11
  5. Step 5: Solve for x
    x = 5,725,702,465.11/85,981.17
  6. Step 6: Final answer
    x = 66,592.52

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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.