Home / 91,038.87-136,574.74-27,857.86

Finding the Fourth Proportional to 91,038.87, 136,574.74 and 27,857.86

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Solution

The fourth proportional to 91,038.87, 136,574.74 and 27,857.86 is: 41,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,038.87 : 136,574.74 = 27,857.86 : x
  2. Step 2: Convert to fraction form
    91,038.87/136,574.74 = 27,857.86/x
  3. Step 3: Cross multiply
    91,038.87x = 136,574.74 × 27,857.86
  4. Step 4: Simplify right side
    91,038.87x = 3,804,679,679.84
  5. Step 5: Solve for x
    x = 3,804,679,679.84/91,038.87
  6. Step 6: Final answer
    x = 41,791.82

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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.