Home / 91,985.22-137,974.19-28,804.01

Finding the Fourth Proportional to 91,985.22, 137,974.19 and 28,804.01

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Solution

The fourth proportional to 91,985.22, 137,974.19 and 28,804.01 is: 43,204.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,985.22 : 137,974.19 = 28,804.01 : x
  2. Step 2: Convert to fraction form
    91,985.22/137,974.19 = 28,804.01/x
  3. Step 3: Cross multiply
    91,985.22x = 137,974.19 × 28,804.01
  4. Step 4: Simplify right side
    91,985.22x = 3,974,209,114.61
  5. Step 5: Solve for x
    x = 3,974,209,114.61/91,985.22
  6. Step 6: Final answer
    x = 43,204.87

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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.