Home / 85,917.86-118,563.55-47,679.08

Finding the Fourth Proportional to 85,917.86, 118,563.55 and 47,679.08

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Solution

The fourth proportional to 85,917.86, 118,563.55 and 47,679.08 is: 65,795.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,917.86 : 118,563.55 = 47,679.08 : x
  2. Step 2: Convert to fraction form
    85,917.86/118,563.55 = 47,679.08/x
  3. Step 3: Cross multiply
    85,917.86x = 118,563.55 × 47,679.08
  4. Step 4: Simplify right side
    85,917.86x = 5,653,000,985.53
  5. Step 5: Solve for x
    x = 5,653,000,985.53/85,917.86
  6. Step 6: Final answer
    x = 65,795.41

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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.