Home / 85,660.83-118,225.56-51,674.21

Finding the Fourth Proportional to 85,660.83, 118,225.56 and 51,674.21

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Solution

The fourth proportional to 85,660.83, 118,225.56 and 51,674.21 is: 71,318.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,660.83 : 118,225.56 = 51,674.21 : x
  2. Step 2: Convert to fraction form
    85,660.83/118,225.56 = 51,674.21/x
  3. Step 3: Cross multiply
    85,660.83x = 118,225.56 × 51,674.21
  4. Step 4: Simplify right side
    85,660.83x = 6,109,211,823.68
  5. Step 5: Solve for x
    x = 6,109,211,823.68/85,660.83
  6. Step 6: Final answer
    x = 71,318.62

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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.