Home / 85,626.78-118,165.29-47,901.06

Finding the Fourth Proportional to 85,626.78, 118,165.29 and 47,901.06

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Solution

The fourth proportional to 85,626.78, 118,165.29 and 47,901.06 is: 66,103.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,626.78 : 118,165.29 = 47,901.06 : x
  2. Step 2: Convert to fraction form
    85,626.78/118,165.29 = 47,901.06/x
  3. Step 3: Cross multiply
    85,626.78x = 118,165.29 × 47,901.06
  4. Step 4: Simplify right side
    85,626.78x = 5,660,242,646.21
  5. Step 5: Solve for x
    x = 5,660,242,646.21/85,626.78
  6. Step 6: Final answer
    x = 66,103.65

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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.