Home / 49,990.29-74,985.36-20,018.03

Finding the Fourth Proportional to 49,990.29, 74,985.36 and 20,018.03

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Solution

The fourth proportional to 49,990.29, 74,985.36 and 20,018.03 is: 30,027.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,990.29 : 74,985.36 = 20,018.03 : x
  2. Step 2: Convert to fraction form
    49,990.29/74,985.36 = 20,018.03/x
  3. Step 3: Cross multiply
    49,990.29x = 74,985.36 × 20,018.03
  4. Step 4: Simplify right side
    49,990.29x = 1,501,058,811.11
  5. Step 5: Solve for x
    x = 1,501,058,811.11/49,990.29
  6. Step 6: Final answer
    x = 30,027.01

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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.