Home / 84,631.05-116,737.74-54,455.58

Finding the Fourth Proportional to 84,631.05, 116,737.74 and 54,455.58

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Solution

The fourth proportional to 84,631.05, 116,737.74 and 54,455.58 is: 75,114.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,631.05 : 116,737.74 = 54,455.58 : x
  2. Step 2: Convert to fraction form
    84,631.05/116,737.74 = 54,455.58/x
  3. Step 3: Cross multiply
    84,631.05x = 116,737.74 × 54,455.58
  4. Step 4: Simplify right side
    84,631.05x = 6,357,021,339.59
  5. Step 5: Solve for x
    x = 6,357,021,339.59/84,631.05
  6. Step 6: Final answer
    x = 75,114.53

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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.