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Finding the Fourth Proportional to 85,523.46, 118,064.45 and 53,709.90

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Solution

The fourth proportional to 85,523.46, 118,064.45 and 53,709.90 is: 74,146.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,523.46 : 118,064.45 = 53,709.90 : x
  2. Step 2: Convert to fraction form
    85,523.46/118,064.45 = 53,709.90/x
  3. Step 3: Cross multiply
    85,523.46x = 118,064.45 × 53,709.90
  4. Step 4: Simplify right side
    85,523.46x = 6,341,229,803.06
  5. Step 5: Solve for x
    x = 6,341,229,803.06/85,523.46
  6. Step 6: Final answer
    x = 74,146.09

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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.