Home / 91,489.49-137,241.16-28,316.00

Finding the Fourth Proportional to 91,489.49, 137,241.16 and 28,316.00

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Solution

The fourth proportional to 91,489.49, 137,241.16 and 28,316.00 is: 42,476.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,489.49 : 137,241.16 = 28,316.00 : x
  2. Step 2: Convert to fraction form
    91,489.49/137,241.16 = 28,316.00/x
  3. Step 3: Cross multiply
    91,489.49x = 137,241.16 × 28,316.00
  4. Step 4: Simplify right side
    91,489.49x = 3,886,120,406.10
  5. Step 5: Solve for x
    x = 3,886,120,406.10/91,489.49
  6. Step 6: Final answer
    x = 42,476.14

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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.