Home / 112,777.77-155,633.32-61,792.44

Finding the Fourth Proportional to 112,777.77, 155,633.32 and 61,792.44

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Solution

The fourth proportional to 112,777.77, 155,633.32 and 61,792.44 is: 85,273.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,777.77 : 155,633.32 = 61,792.44 : x
  2. Step 2: Convert to fraction form
    112,777.77/155,633.32 = 61,792.44/x
  3. Step 3: Cross multiply
    112,777.77x = 155,633.32 × 61,792.44
  4. Step 4: Simplify right side
    112,777.77x = 9,616,962,588.10
  5. Step 5: Solve for x
    x = 9,616,962,588.10/112,777.77
  6. Step 6: Final answer
    x = 85,273.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.