Home / 85,433.81-117,908.60-71,068.23

Finding the Fourth Proportional to 85,433.81, 117,908.60 and 71,068.23

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Solution

The fourth proportional to 85,433.81, 117,908.60 and 71,068.23 is: 98,082.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,433.81 : 117,908.60 = 71,068.23 : x
  2. Step 2: Convert to fraction form
    85,433.81/117,908.60 = 71,068.23/x
  3. Step 3: Cross multiply
    85,433.81x = 117,908.60 × 71,068.23
  4. Step 4: Simplify right side
    85,433.81x = 8,379,555,148.44
  5. Step 5: Solve for x
    x = 8,379,555,148.44/85,433.81
  6. Step 6: Final answer
    x = 98,082.43

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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.