Home / 72,534.36-108,735.86-25,776.30

Finding the Fourth Proportional to 72,534.36, 108,735.86 and 25,776.30

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Solution

The fourth proportional to 72,534.36, 108,735.86 and 25,776.30 is: 38,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,534.36 : 108,735.86 = 25,776.30 : x
  2. Step 2: Convert to fraction form
    72,534.36/108,735.86 = 25,776.30/x
  3. Step 3: Cross multiply
    72,534.36x = 108,735.86 × 25,776.30
  4. Step 4: Simplify right side
    72,534.36x = 2,802,808,148.12
  5. Step 5: Solve for x
    x = 2,802,808,148.12/72,534.36
  6. Step 6: Final answer
    x = 38,641.11

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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.