Home / 57,035.81-78,707.16-31,540.52

Finding the Fourth Proportional to 57,035.81, 78,707.16 and 31,540.52

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Solution

The fourth proportional to 57,035.81, 78,707.16 and 31,540.52 is: 43,524.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,035.81 : 78,707.16 = 31,540.52 : x
  2. Step 2: Convert to fraction form
    57,035.81/78,707.16 = 31,540.52/x
  3. Step 3: Cross multiply
    57,035.81x = 78,707.16 × 31,540.52
  4. Step 4: Simplify right side
    57,035.81x = 2,482,464,754.12
  5. Step 5: Solve for x
    x = 2,482,464,754.12/57,035.81
  6. Step 6: Final answer
    x = 43,524.67

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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.