Home / 72,720.13-109,053.19-25,323.05

Finding the Fourth Proportional to 72,720.13, 109,053.19 and 25,323.05

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Solution

The fourth proportional to 72,720.13, 109,053.19 and 25,323.05 is: 37,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,720.13 : 109,053.19 = 25,323.05 : x
  2. Step 2: Convert to fraction form
    72,720.13/109,053.19 = 25,323.05/x
  3. Step 3: Cross multiply
    72,720.13x = 109,053.19 × 25,323.05
  4. Step 4: Simplify right side
    72,720.13x = 2,761,559,256.41
  5. Step 5: Solve for x
    x = 2,761,559,256.41/72,720.13
  6. Step 6: Final answer
    x = 37,975.17

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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.