Home / 81,886.06-122,632.25-46,719.10

Finding the Fourth Proportional to 81,886.06, 122,632.25 and 46,719.10

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Solution

The fourth proportional to 81,886.06, 122,632.25 and 46,719.10 is: 69,966.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,886.06 : 122,632.25 = 46,719.10 : x
  2. Step 2: Convert to fraction form
    81,886.06/122,632.25 = 46,719.10/x
  3. Step 3: Cross multiply
    81,886.06x = 122,632.25 × 46,719.10
  4. Step 4: Simplify right side
    81,886.06x = 5,729,268,161.19
  5. Step 5: Solve for x
    x = 5,729,268,161.19/81,886.06
  6. Step 6: Final answer
    x = 69,966.35

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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.