Home / 85,639.74-118,182.94-47,914.02

Finding the Fourth Proportional to 85,639.74, 118,182.94 and 47,914.02

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Solution

The fourth proportional to 85,639.74, 118,182.94 and 47,914.02 is: 66,121.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,639.74 : 118,182.94 = 47,914.02 : x
  2. Step 2: Convert to fraction form
    85,639.74/118,182.94 = 47,914.02/x
  3. Step 3: Cross multiply
    85,639.74x = 118,182.94 × 47,914.02
  4. Step 4: Simplify right side
    85,639.74x = 5,662,619,750.82
  5. Step 5: Solve for x
    x = 5,662,619,750.82/85,639.74
  6. Step 6: Final answer
    x = 66,121.40

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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.