Home / 81,326.24-121,892.16-46,217.60

Finding the Fourth Proportional to 81,326.24, 121,892.16 and 46,217.60

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Solution

The fourth proportional to 81,326.24, 121,892.16 and 46,217.60 is: 69,271.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,326.24 : 121,892.16 = 46,217.60 : x
  2. Step 2: Convert to fraction form
    81,326.24/121,892.16 = 46,217.60/x
  3. Step 3: Cross multiply
    81,326.24x = 121,892.16 × 46,217.60
  4. Step 4: Simplify right side
    81,326.24x = 5,633,563,094.02
  5. Step 5: Solve for x
    x = 5,633,563,094.02/81,326.24
  6. Step 6: Final answer
    x = 69,271.16

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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.