Home / 72,135.06-108,055.63-58,855.38

Finding the Fourth Proportional to 72,135.06, 108,055.63 and 58,855.38

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Solution

The fourth proportional to 72,135.06, 108,055.63 and 58,855.38 is: 88,163.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,135.06 : 108,055.63 = 58,855.38 : x
  2. Step 2: Convert to fraction form
    72,135.06/108,055.63 = 58,855.38/x
  3. Step 3: Cross multiply
    72,135.06x = 108,055.63 × 58,855.38
  4. Step 4: Simplify right side
    72,135.06x = 6,359,655,164.79
  5. Step 5: Solve for x
    x = 6,359,655,164.79/72,135.06
  6. Step 6: Final answer
    x = 88,163.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.