Home / 85,724.85-118,299.05-47,484.28

Finding the Fourth Proportional to 85,724.85, 118,299.05 and 47,484.28

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Solution

The fourth proportional to 85,724.85, 118,299.05 and 47,484.28 is: 65,527.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,724.85 : 118,299.05 = 47,484.28 : x
  2. Step 2: Convert to fraction form
    85,724.85/118,299.05 = 47,484.28/x
  3. Step 3: Cross multiply
    85,724.85x = 118,299.05 × 47,484.28
  4. Step 4: Simplify right side
    85,724.85x = 5,617,345,213.93
  5. Step 5: Solve for x
    x = 5,617,345,213.93/85,724.85
  6. Step 6: Final answer
    x = 65,527.62

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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.