Home / 91,042.56-136,548.48-28,704

Finding the Fourth Proportional to 91,042.56, 136,548.48 and 28,704

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Solution

The fourth proportional to 91,042.56, 136,548.48 and 28,704 is: 43,051.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,042.56 : 136,548.48 = 28,704 : x
  2. Step 2: Convert to fraction form
    91,042.56/136,548.48 = 28,704/x
  3. Step 3: Cross multiply
    91,042.56x = 136,548.48 × 28,704
  4. Step 4: Simplify right side
    91,042.56x = 3,919,487,569.92
  5. Step 5: Solve for x
    x = 3,919,487,569.92/91,042.56
  6. Step 6: Final answer
    x = 43,051.16

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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.