Home / 77,909.42-116,883.76-21,749.46

Finding the Fourth Proportional to 77,909.42, 116,883.76 and 21,749.46

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Solution

The fourth proportional to 77,909.42, 116,883.76 and 21,749.46 is: 32,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,909.42 : 116,883.76 = 21,749.46 : x
  2. Step 2: Convert to fraction form
    77,909.42/116,883.76 = 21,749.46/x
  3. Step 3: Cross multiply
    77,909.42x = 116,883.76 × 21,749.46
  4. Step 4: Simplify right side
    77,909.42x = 2,542,158,662.77
  5. Step 5: Solve for x
    x = 2,542,158,662.77/77,909.42
  6. Step 6: Final answer
    x = 32,629.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.