Home / 72,987.09-100,725.03-41,155.32

Finding the Fourth Proportional to 72,987.09, 100,725.03 and 41,155.32

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Solution

The fourth proportional to 72,987.09, 100,725.03 and 41,155.32 is: 56,795.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,987.09 : 100,725.03 = 41,155.32 : x
  2. Step 2: Convert to fraction form
    72,987.09/100,725.03 = 41,155.32/x
  3. Step 3: Cross multiply
    72,987.09x = 100,725.03 × 41,155.32
  4. Step 4: Simplify right side
    72,987.09x = 4,145,370,841.66
  5. Step 5: Solve for x
    x = 4,145,370,841.66/72,987.09
  6. Step 6: Final answer
    x = 56,795.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.