Home / 40,680.71-56,099.93-31,724.94

Finding the Fourth Proportional to 40,680.71, 56,099.93 and 31,724.94

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Solution

The fourth proportional to 40,680.71, 56,099.93 and 31,724.94 is: 43,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,680.71 : 56,099.93 = 31,724.94 : x
  2. Step 2: Convert to fraction form
    40,680.71/56,099.93 = 31,724.94/x
  3. Step 3: Cross multiply
    40,680.71x = 56,099.93 × 31,724.94
  4. Step 4: Simplify right side
    40,680.71x = 1,779,766,754.63
  5. Step 5: Solve for x
    x = 1,779,766,754.63/40,680.71
  6. Step 6: Final answer
    x = 43,749.65

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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.