Home / 85,724.52-118,299.60-47,998.68

Finding the Fourth Proportional to 85,724.52, 118,299.60 and 47,998.68

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Solution

The fourth proportional to 85,724.52, 118,299.60 and 47,998.68 is: 66,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,724.52 : 118,299.60 = 47,998.68 : x
  2. Step 2: Convert to fraction form
    85,724.52/118,299.60 = 47,998.68/x
  3. Step 3: Cross multiply
    85,724.52x = 118,299.60 × 47,998.68
  4. Step 4: Simplify right side
    85,724.52x = 5,678,224,644.53
  5. Step 5: Solve for x
    x = 5,678,224,644.53/85,724.52
  6. Step 6: Final answer
    x = 66,238.05

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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.