Home / 87,054.68-120,172.20-58,798.64

Finding the Fourth Proportional to 87,054.68, 120,172.20 and 58,798.64

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Solution

The fourth proportional to 87,054.68, 120,172.20 and 58,798.64 is: 81,166.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,054.68 : 120,172.20 = 58,798.64 : x
  2. Step 2: Convert to fraction form
    87,054.68/120,172.20 = 58,798.64/x
  3. Step 3: Cross multiply
    87,054.68x = 120,172.20 × 58,798.64
  4. Step 4: Simplify right side
    87,054.68x = 7,065,961,925.81
  5. Step 5: Solve for x
    x = 7,065,961,925.81/87,054.68
  6. Step 6: Final answer
    x = 81,166.94

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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.