Home / 81,618.41-112,644.77-45,328.01

Finding the Fourth Proportional to 81,618.41, 112,644.77 and 45,328.01

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Solution

The fourth proportional to 81,618.41, 112,644.77 and 45,328.01 is: 62,558.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,618.41 : 112,644.77 = 45,328.01 : x
  2. Step 2: Convert to fraction form
    81,618.41/112,644.77 = 45,328.01/x
  3. Step 3: Cross multiply
    81,618.41x = 112,644.77 × 45,328.01
  4. Step 4: Simplify right side
    81,618.41x = 5,105,963,034.37
  5. Step 5: Solve for x
    x = 5,105,963,034.37/81,618.41
  6. Step 6: Final answer
    x = 62,558.96

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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.