Home / 91,269.47-136,917.18-28,094.86

Finding the Fourth Proportional to 91,269.47, 136,917.18 and 28,094.86

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Solution

The fourth proportional to 91,269.47, 136,917.18 and 28,094.86 is: 42,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,269.47 : 136,917.18 = 28,094.86 : x
  2. Step 2: Convert to fraction form
    91,269.47/136,917.18 = 28,094.86/x
  3. Step 3: Cross multiply
    91,269.47x = 136,917.18 × 28,094.86
  4. Step 4: Simplify right side
    91,269.47x = 3,846,668,328.45
  5. Step 5: Solve for x
    x = 3,846,668,328.45/91,269.47
  6. Step 6: Final answer
    x = 42,146.28

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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.