Home / 85,739.05-118,377.63-53,522.72

Finding the Fourth Proportional to 85,739.05, 118,377.63 and 53,522.72

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Solution

The fourth proportional to 85,739.05, 118,377.63 and 53,522.72 is: 73,897.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,739.05 : 118,377.63 = 53,522.72 : x
  2. Step 2: Convert to fraction form
    85,739.05/118,377.63 = 53,522.72/x
  3. Step 3: Cross multiply
    85,739.05x = 118,377.63 × 53,522.72
  4. Step 4: Simplify right side
    85,739.05x = 6,335,892,596.78
  5. Step 5: Solve for x
    x = 6,335,892,596.78/85,739.05
  6. Step 6: Final answer
    x = 73,897.40

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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.