Home / 115,784.36-173,679.48-31,545.20

Finding the Fourth Proportional to 115,784.36, 173,679.48 and 31,545.20

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Solution

The fourth proportional to 115,784.36, 173,679.48 and 31,545.20 is: 47,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,784.36 : 173,679.48 = 31,545.20 : x
  2. Step 2: Convert to fraction form
    115,784.36/173,679.48 = 31,545.20/x
  3. Step 3: Cross multiply
    115,784.36x = 173,679.48 × 31,545.20
  4. Step 4: Simplify right side
    115,784.36x = 5,478,753,932.50
  5. Step 5: Solve for x
    x = 5,478,753,932.50/115,784.36
  6. Step 6: Final answer
    x = 47,318.60

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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.