Home / 57,742.63-79,685.07-31,246.63

Finding the Fourth Proportional to 57,742.63, 79,685.07 and 31,246.63

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Solution

The fourth proportional to 57,742.63, 79,685.07 and 31,246.63 is: 43,120.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.63 : 79,685.07 = 31,246.63 : x
  2. Step 2: Convert to fraction form
    57,742.63/79,685.07 = 31,246.63/x
  3. Step 3: Cross multiply
    57,742.63x = 79,685.07 × 31,246.63
  4. Step 4: Simplify right side
    57,742.63x = 2,489,889,344.16
  5. Step 5: Solve for x
    x = 2,489,889,344.16/57,742.63
  6. Step 6: Final answer
    x = 43,120.47

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1.5x scale

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.