Home / 91,554.30-137,318.29-35,420.90

Finding the Fourth Proportional to 91,554.30, 137,318.29 and 35,420.90

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Solution

The fourth proportional to 91,554.30, 137,318.29 and 35,420.90 is: 53,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,554.30 : 137,318.29 = 35,420.90 : x
  2. Step 2: Convert to fraction form
    91,554.30/137,318.29 = 35,420.90/x
  3. Step 3: Cross multiply
    91,554.30x = 137,318.29 × 35,420.90
  4. Step 4: Simplify right side
    91,554.30x = 4,863,936,643.12
  5. Step 5: Solve for x
    x = 4,863,936,643.12/91,554.30
  6. Step 6: Final answer
    x = 53,126.25

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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.