Home / 45,405.93-68,111.45-13,817.02

Finding the Fourth Proportional to 45,405.93, 68,111.45 and 13,817.02

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Solution

The fourth proportional to 45,405.93, 68,111.45 and 13,817.02 is: 20,726.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,405.93 : 68,111.45 = 13,817.02 : x
  2. Step 2: Convert to fraction form
    45,405.93/68,111.45 = 13,817.02/x
  3. Step 3: Cross multiply
    45,405.93x = 68,111.45 × 13,817.02
  4. Step 4: Simplify right side
    45,405.93x = 941,097,162.26
  5. Step 5: Solve for x
    x = 941,097,162.26/45,405.93
  6. Step 6: Final answer
    x = 20,726.31

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1.5x scale

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.