Home / 85,739.42-118,378.18-53,523.10

Finding the Fourth Proportional to 85,739.42, 118,378.18 and 53,523.10

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Solution

The fourth proportional to 85,739.42, 118,378.18 and 53,523.10 is: 73,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,739.42 : 118,378.18 = 53,523.10 : x
  2. Step 2: Convert to fraction form
    85,739.42/118,378.18 = 53,523.10/x
  3. Step 3: Cross multiply
    85,739.42x = 118,378.18 × 53,523.10
  4. Step 4: Simplify right side
    85,739.42x = 6,335,967,165.96
  5. Step 5: Solve for x
    x = 6,335,967,165.96/85,739.42
  6. Step 6: Final answer
    x = 73,897.95

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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.