Home / 85,869.26-118,552.11-68,036.30

Finding the Fourth Proportional to 85,869.26, 118,552.11 and 68,036.30

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Solution

The fourth proportional to 85,869.26, 118,552.11 and 68,036.30 is: 93,931.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869.26 : 118,552.11 = 68,036.30 : x
  2. Step 2: Convert to fraction form
    85,869.26/118,552.11 = 68,036.30/x
  3. Step 3: Cross multiply
    85,869.26x = 118,552.11 × 68,036.30
  4. Step 4: Simplify right side
    85,869.26x = 8,065,846,921.59
  5. Step 5: Solve for x
    x = 8,065,846,921.59/85,869.26
  6. Step 6: Final answer
    x = 93,931.72

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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.