Home / 81,985.06-113,136.42-46,178.40

Finding the Fourth Proportional to 81,985.06, 113,136.42 and 46,178.40

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Solution

The fourth proportional to 81,985.06, 113,136.42 and 46,178.40 is: 63,724.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,985.06 : 113,136.42 = 46,178.40 : x
  2. Step 2: Convert to fraction form
    81,985.06/113,136.42 = 46,178.40/x
  3. Step 3: Cross multiply
    81,985.06x = 113,136.42 × 46,178.40
  4. Step 4: Simplify right side
    81,985.06x = 5,224,458,857.33
  5. Step 5: Solve for x
    x = 5,224,458,857.33/81,985.06
  6. Step 6: Final answer
    x = 63,724.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.