Home / 90,941.32-136,392.54-28,597.96

Finding the Fourth Proportional to 90,941.32, 136,392.54 and 28,597.96

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Solution

The fourth proportional to 90,941.32, 136,392.54 and 28,597.96 is: 42,890.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,941.32 : 136,392.54 = 28,597.96 : x
  2. Step 2: Convert to fraction form
    90,941.32/136,392.54 = 28,597.96/x
  3. Step 3: Cross multiply
    90,941.32x = 136,392.54 × 28,597.96
  4. Step 4: Simplify right side
    90,941.32x = 3,900,548,403.22
  5. Step 5: Solve for x
    x = 3,900,548,403.22/90,941.32
  6. Step 6: Final answer
    x = 42,890.83

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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.