Home / 61,130.22-91,513.53-54,715.56

Finding the Fourth Proportional to 61,130.22, 91,513.53 and 54,715.56

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Solution

The fourth proportional to 61,130.22, 91,513.53 and 54,715.56 is: 81,910.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,130.22 : 91,513.53 = 54,715.56 : x
  2. Step 2: Convert to fraction form
    61,130.22/91,513.53 = 54,715.56/x
  3. Step 3: Cross multiply
    61,130.22x = 91,513.53 × 54,715.56
  4. Step 4: Simplify right side
    61,130.22x = 5,007,214,041.53
  5. Step 5: Solve for x
    x = 5,007,214,041.53/61,130.22
  6. Step 6: Final answer
    x = 81,910.62

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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.