Home / 91,006.62-136,426.77-77,056.53

Finding the Fourth Proportional to 91,006.62, 136,426.77 and 77,056.53

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Solution

The fourth proportional to 91,006.62, 136,426.77 and 77,056.53 is: 115,514.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,006.62 : 136,426.77 = 77,056.53 : x
  2. Step 2: Convert to fraction form
    91,006.62/136,426.77 = 77,056.53/x
  3. Step 3: Cross multiply
    91,006.62x = 136,426.77 × 77,056.53
  4. Step 4: Simplify right side
    91,006.62x = 10,512,573,495.31
  5. Step 5: Solve for x
    x = 10,512,573,495.31/91,006.62
  6. Step 6: Final answer
    x = 115,514.38

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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.