Home / 85,816.28-118,433.46-47,587.81

Finding the Fourth Proportional to 85,816.28, 118,433.46 and 47,587.81

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Solution

The fourth proportional to 85,816.28, 118,433.46 and 47,587.81 is: 65,675.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,816.28 : 118,433.46 = 47,587.81 : x
  2. Step 2: Convert to fraction form
    85,816.28/118,433.46 = 47,587.81/x
  3. Step 3: Cross multiply
    85,816.28x = 118,433.46 × 47,587.81
  4. Step 4: Simplify right side
    85,816.28x = 5,635,988,992.12
  5. Step 5: Solve for x
    x = 5,635,988,992.12/85,816.28
  6. Step 6: Final answer
    x = 65,675.06

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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.