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Finding the Fourth Proportional to 57,099.96, 78,795.47 and 31,604.81

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Solution

The fourth proportional to 57,099.96, 78,795.47 and 31,604.81 is: 43,613.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,099.96 : 78,795.47 = 31,604.81 : x
  2. Step 2: Convert to fraction form
    57,099.96/78,795.47 = 31,604.81/x
  3. Step 3: Cross multiply
    57,099.96x = 78,795.47 × 31,604.81
  4. Step 4: Simplify right side
    57,099.96x = 2,490,315,306.21
  5. Step 5: Solve for x
    x = 2,490,315,306.21/57,099.96
  6. Step 6: Final answer
    x = 43,613.26

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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.