Home / 85,242.56-117,643.68-51,262.16

Finding the Fourth Proportional to 85,242.56, 117,643.68 and 51,262.16

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Solution

The fourth proportional to 85,242.56, 117,643.68 and 51,262.16 is: 70,747.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,242.56 : 117,643.68 = 51,262.16 : x
  2. Step 2: Convert to fraction form
    85,242.56/117,643.68 = 51,262.16/x
  3. Step 3: Cross multiply
    85,242.56x = 117,643.68 × 51,262.16
  4. Step 4: Simplify right side
    85,242.56x = 6,030,669,147.15
  5. Step 5: Solve for x
    x = 6,030,669,147.15/85,242.56
  6. Step 6: Final answer
    x = 70,747.16

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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.