Home / 52,136.28-71,922.70-30,900.51

Finding the Fourth Proportional to 52,136.28, 71,922.70 and 30,900.51

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Solution

The fourth proportional to 52,136.28, 71,922.70 and 30,900.51 is: 42,627.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,136.28 : 71,922.70 = 30,900.51 : x
  2. Step 2: Convert to fraction form
    52,136.28/71,922.70 = 30,900.51/x
  3. Step 3: Cross multiply
    52,136.28x = 71,922.70 × 30,900.51
  4. Step 4: Simplify right side
    52,136.28x = 2,222,447,956.07
  5. Step 5: Solve for x
    x = 2,222,447,956.07/52,136.28
  6. Step 6: Final answer
    x = 42,627.67

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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.