Home / 48,225.36-72,349.50-20,129.82

Finding the Fourth Proportional to 48,225.36, 72,349.50 and 20,129.82

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Solution

The fourth proportional to 48,225.36, 72,349.50 and 20,129.82 is: 30,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,225.36 : 72,349.50 = 20,129.82 : x
  2. Step 2: Convert to fraction form
    48,225.36/72,349.50 = 20,129.82/x
  3. Step 3: Cross multiply
    48,225.36x = 72,349.50 × 20,129.82
  4. Step 4: Simplify right side
    48,225.36x = 1,456,382,412.09
  5. Step 5: Solve for x
    x = 1,456,382,412.09/48,225.36
  6. Step 6: Final answer
    x = 30,199.51

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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.