Home / 69,971.28-104,925.96-20,040

Finding the Fourth Proportional to 69,971.28, 104,925.96 and 20,040

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Solution

The fourth proportional to 69,971.28, 104,925.96 and 20,040 is: 30,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,971.28 : 104,925.96 = 20,040 : x
  2. Step 2: Convert to fraction form
    69,971.28/104,925.96 = 20,040/x
  3. Step 3: Cross multiply
    69,971.28x = 104,925.96 × 20,040
  4. Step 4: Simplify right side
    69,971.28x = 2,102,716,238.40
  5. Step 5: Solve for x
    x = 2,102,716,238.40/69,971.28
  6. Step 6: Final answer
    x = 30,051.13

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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.