Home / 91,973.51-137,958.86-25,412.16

Finding the Fourth Proportional to 91,973.51, 137,958.86 and 25,412.16

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Solution

The fourth proportional to 91,973.51, 137,958.86 and 25,412.16 is: 38,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,973.51 : 137,958.86 = 25,412.16 : x
  2. Step 2: Convert to fraction form
    91,973.51/137,958.86 = 25,412.16/x
  3. Step 3: Cross multiply
    91,973.51x = 137,958.86 × 25,412.16
  4. Step 4: Simplify right side
    91,973.51x = 3,505,832,496.68
  5. Step 5: Solve for x
    x = 3,505,832,496.68/91,973.51
  6. Step 6: Final answer
    x = 38,117.85

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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.