Home / 48,218.34-72,303.80-20,129.97

Finding the Fourth Proportional to 48,218.34, 72,303.80 and 20,129.97

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Solution

The fourth proportional to 48,218.34, 72,303.80 and 20,129.97 is: 30,185.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,218.34 : 72,303.80 = 20,129.97 : x
  2. Step 2: Convert to fraction form
    48,218.34/72,303.80 = 20,129.97/x
  3. Step 3: Cross multiply
    48,218.34x = 72,303.80 × 20,129.97
  4. Step 4: Simplify right side
    48,218.34x = 1,455,473,224.24
  5. Step 5: Solve for x
    x = 1,455,473,224.24/48,218.34
  6. Step 6: Final answer
    x = 30,185.05

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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.