Home / 91,122.59-136,555.43-43,039.94

Finding the Fourth Proportional to 91,122.59, 136,555.43 and 43,039.94

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Solution

The fourth proportional to 91,122.59, 136,555.43 and 43,039.94 is: 64,499.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,122.59 : 136,555.43 = 43,039.94 : x
  2. Step 2: Convert to fraction form
    91,122.59/136,555.43 = 43,039.94/x
  3. Step 3: Cross multiply
    91,122.59x = 136,555.43 × 43,039.94
  4. Step 4: Simplify right side
    91,122.59x = 5,877,337,962.86
  5. Step 5: Solve for x
    x = 5,877,337,962.86/91,122.59
  6. Step 6: Final answer
    x = 64,499.24

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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.