Home / 85,817.82-118,400.76-55,626.69

Finding the Fourth Proportional to 85,817.82, 118,400.76 and 55,626.69

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Solution

The fourth proportional to 85,817.82, 118,400.76 and 55,626.69 is: 76,746.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,817.82 : 118,400.76 = 55,626.69 : x
  2. Step 2: Convert to fraction form
    85,817.82/118,400.76 = 55,626.69/x
  3. Step 3: Cross multiply
    85,817.82x = 118,400.76 × 55,626.69
  4. Step 4: Simplify right side
    85,817.82x = 6,586,242,372.28
  5. Step 5: Solve for x
    x = 6,586,242,372.28/85,817.82
  6. Step 6: Final answer
    x = 76,746.79

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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.