Home / 91,973.79-137,938.80-25,412.46

Finding the Fourth Proportional to 91,973.79, 137,938.80 and 25,412.46

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Solution

The fourth proportional to 91,973.79, 137,938.80 and 25,412.46 is: 38,112.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,973.79 : 137,938.80 = 25,412.46 : x
  2. Step 2: Convert to fraction form
    91,973.79/137,938.80 = 25,412.46/x
  3. Step 3: Cross multiply
    91,973.79x = 137,938.80 × 25,412.46
  4. Step 4: Simplify right side
    91,973.79x = 3,505,364,237.45
  5. Step 5: Solve for x
    x = 3,505,364,237.45/91,973.79
  6. Step 6: Final answer
    x = 38,112.64

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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.