Home / 81,791.64-112,869.44-45,984.98

Finding the Fourth Proportional to 81,791.64, 112,869.44 and 45,984.98

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Solution

The fourth proportional to 81,791.64, 112,869.44 and 45,984.98 is: 63,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,791.64 : 112,869.44 = 45,984.98 : x
  2. Step 2: Convert to fraction form
    81,791.64/112,869.44 = 45,984.98/x
  3. Step 3: Cross multiply
    81,791.64x = 112,869.44 × 45,984.98
  4. Step 4: Simplify right side
    81,791.64x = 5,190,298,941.01
  5. Step 5: Solve for x
    x = 5,190,298,941.01/81,791.64
  6. Step 6: Final answer
    x = 63,457.57

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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.