Home / 85,985.87-118,658.84-47,743.43

Finding the Fourth Proportional to 85,985.87, 118,658.84 and 47,743.43

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Solution

The fourth proportional to 85,985.87, 118,658.84 and 47,743.43 is: 65,885.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,985.87 : 118,658.84 = 47,743.43 : x
  2. Step 2: Convert to fraction form
    85,985.87/118,658.84 = 47,743.43/x
  3. Step 3: Cross multiply
    85,985.87x = 118,658.84 × 47,743.43
  4. Step 4: Simplify right side
    85,985.87x = 5,665,180,079.35
  5. Step 5: Solve for x
    x = 5,665,180,079.35/85,985.87
  6. Step 6: Final answer
    x = 65,885.01

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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.