Home / 81,739.26-112,810.26-45,928.50

Finding the Fourth Proportional to 81,739.26, 112,810.26 and 45,928.50

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Solution

The fourth proportional to 81,739.26, 112,810.26 and 45,928.50 is: 63,386.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,739.26 : 112,810.26 = 45,928.50 : x
  2. Step 2: Convert to fraction form
    81,739.26/112,810.26 = 45,928.50/x
  3. Step 3: Cross multiply
    81,739.26x = 112,810.26 × 45,928.50
  4. Step 4: Simplify right side
    81,739.26x = 5,181,206,026.41
  5. Step 5: Solve for x
    x = 5,181,206,026.41/81,739.26
  6. Step 6: Final answer
    x = 63,386.99

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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.