Home / 81,941.81-113,111.44-64,042.58

Finding the Fourth Proportional to 81,941.81, 113,111.44 and 64,042.58

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Solution

The fourth proportional to 81,941.81, 113,111.44 and 64,042.58 is: 88,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,941.81 : 113,111.44 = 64,042.58 : x
  2. Step 2: Convert to fraction form
    81,941.81/113,111.44 = 64,042.58/x
  3. Step 3: Cross multiply
    81,941.81x = 113,111.44 × 64,042.58
  4. Step 4: Simplify right side
    81,941.81x = 7,243,948,567.79
  5. Step 5: Solve for x
    x = 7,243,948,567.79/81,941.81
  6. Step 6: Final answer
    x = 88,403.57

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1.5x scale

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.