Home / 85,697.17-118,261.38-49,385.36

Finding the Fourth Proportional to 85,697.17, 118,261.38 and 49,385.36

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Solution

The fourth proportional to 85,697.17, 118,261.38 and 49,385.36 is: 68,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,697.17 : 118,261.38 = 49,385.36 : x
  2. Step 2: Convert to fraction form
    85,697.17/118,261.38 = 49,385.36/x
  3. Step 3: Cross multiply
    85,697.17x = 118,261.38 × 49,385.36
  4. Step 4: Simplify right side
    85,697.17x = 5,840,381,581.75
  5. Step 5: Solve for x
    x = 5,840,381,581.75/85,697.17
  6. Step 6: Final answer
    x = 68,151.40

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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.