Home / 97,131.46-134,039.40-54,110.90

Finding the Fourth Proportional to 97,131.46, 134,039.40 and 54,110.90

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Solution

The fourth proportional to 97,131.46, 134,039.40 and 54,110.90 is: 74,671.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,131.46 : 134,039.40 = 54,110.90 : x
  2. Step 2: Convert to fraction form
    97,131.46/134,039.40 = 54,110.90/x
  3. Step 3: Cross multiply
    97,131.46x = 134,039.40 × 54,110.90
  4. Step 4: Simplify right side
    97,131.46x = 7,252,992,569.46
  5. Step 5: Solve for x
    x = 7,252,992,569.46/97,131.46
  6. Step 6: Final answer
    x = 74,671.92

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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.