Home / 85,628.08-118,163.52-47,902.30

Finding the Fourth Proportional to 85,628.08, 118,163.52 and 47,902.30

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Solution

The fourth proportional to 85,628.08, 118,163.52 and 47,902.30 is: 66,103.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,628.08 : 118,163.52 = 47,902.30 : x
  2. Step 2: Convert to fraction form
    85,628.08/118,163.52 = 47,902.30/x
  3. Step 3: Cross multiply
    85,628.08x = 118,163.52 × 47,902.30
  4. Step 4: Simplify right side
    85,628.08x = 5,660,304,384.10
  5. Step 5: Solve for x
    x = 5,660,304,384.10/85,628.08
  6. Step 6: Final answer
    x = 66,103.37

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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.