Home / 85,715.16-118,259.43-55,523.63

Finding the Fourth Proportional to 85,715.16, 118,259.43 and 55,523.63

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Solution

The fourth proportional to 85,715.16, 118,259.43 and 55,523.63 is: 76,604.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,715.16 : 118,259.43 = 55,523.63 : x
  2. Step 2: Convert to fraction form
    85,715.16/118,259.43 = 55,523.63/x
  3. Step 3: Cross multiply
    85,715.16x = 118,259.43 × 55,523.63
  4. Step 4: Simplify right side
    85,715.16x = 6,566,192,244.03
  5. Step 5: Solve for x
    x = 6,566,192,244.03/85,715.16
  6. Step 6: Final answer
    x = 76,604.79

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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.