Home / 85,710.96-118,279.82-47,986.56

Finding the Fourth Proportional to 85,710.96, 118,279.82 and 47,986.56

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Solution

The fourth proportional to 85,710.96, 118,279.82 and 47,986.56 is: 66,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,710.96 : 118,279.82 = 47,986.56 : x
  2. Step 2: Convert to fraction form
    85,710.96/118,279.82 = 47,986.56/x
  3. Step 3: Cross multiply
    85,710.96x = 118,279.82 × 47,986.56
  4. Step 4: Simplify right side
    85,710.96x = 5,675,841,679.22
  5. Step 5: Solve for x
    x = 5,675,841,679.22/85,710.96
  6. Step 6: Final answer
    x = 66,220.72

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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.