Home / 57,021.82-78,688.74-31,527.54

Finding the Fourth Proportional to 57,021.82, 78,688.74 and 31,527.54

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Solution

The fourth proportional to 57,021.82, 78,688.74 and 31,527.54 is: 43,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,021.82 : 78,688.74 = 31,527.54 : x
  2. Step 2: Convert to fraction form
    57,021.82/78,688.74 = 31,527.54/x
  3. Step 3: Cross multiply
    57,021.82x = 78,688.74 × 31,527.54
  4. Step 4: Simplify right side
    57,021.82x = 2,480,862,397.90
  5. Step 5: Solve for x
    x = 2,480,862,397.90/57,021.82
  6. Step 6: Final answer
    x = 43,507.25

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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.