Home / 91,060.64-136,590.96-28,736

Finding the Fourth Proportional to 91,060.64, 136,590.96 and 28,736

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Solution

The fourth proportional to 91,060.64, 136,590.96 and 28,736 is: 43,104

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,060.64 : 136,590.96 = 28,736 : x
  2. Step 2: Convert to fraction form
    91,060.64/136,590.96 = 28,736/x
  3. Step 3: Cross multiply
    91,060.64x = 136,590.96 × 28,736
  4. Step 4: Simplify right side
    91,060.64x = 3,925,077,826.56
  5. Step 5: Solve for x
    x = 3,925,077,826.56/91,060.64
  6. Step 6: Final answer
    x = 43,104

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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.