Home / 90,116.48-135,160.53-56,734.35

Finding the Fourth Proportional to 90,116.48, 135,160.53 and 56,734.35

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Solution

The fourth proportional to 90,116.48, 135,160.53 and 56,734.35 is: 85,092.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,116.48 : 135,160.53 = 56,734.35 : x
  2. Step 2: Convert to fraction form
    90,116.48/135,160.53 = 56,734.35/x
  3. Step 3: Cross multiply
    90,116.48x = 135,160.53 × 56,734.35
  4. Step 4: Simplify right side
    90,116.48x = 7,668,244,815.21
  5. Step 5: Solve for x
    x = 7,668,244,815.21/90,116.48
  6. Step 6: Final answer
    x = 85,092.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.