Home / 84,384.12-116,451.36-57,168.54

Finding the Fourth Proportional to 84,384.12, 116,451.36 and 57,168.54

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Solution

The fourth proportional to 84,384.12, 116,451.36 and 57,168.54 is: 78,893.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,384.12 : 116,451.36 = 57,168.54 : x
  2. Step 2: Convert to fraction form
    84,384.12/116,451.36 = 57,168.54/x
  3. Step 3: Cross multiply
    84,384.12x = 116,451.36 × 57,168.54
  4. Step 4: Simplify right side
    84,384.12x = 6,657,354,232.21
  5. Step 5: Solve for x
    x = 6,657,354,232.21/84,384.12
  6. Step 6: Final answer
    x = 78,893.45

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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.