Home / 81,655.60-112,697.04-49,842.94

Finding the Fourth Proportional to 81,655.60, 112,697.04 and 49,842.94

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Solution

The fourth proportional to 81,655.60, 112,697.04 and 49,842.94 is: 68,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,655.60 : 112,697.04 = 49,842.94 : x
  2. Step 2: Convert to fraction form
    81,655.60/112,697.04 = 49,842.94/x
  3. Step 3: Cross multiply
    81,655.60x = 112,697.04 × 49,842.94
  4. Step 4: Simplify right side
    81,655.60x = 5,617,151,802.90
  5. Step 5: Solve for x
    x = 5,617,151,802.90/81,655.60
  6. Step 6: Final answer
    x = 68,790.77

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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.