Home / 45,220.28-62,420.14-30,869.84

Finding the Fourth Proportional to 45,220.28, 62,420.14 and 30,869.84

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Solution

The fourth proportional to 45,220.28, 62,420.14 and 30,869.84 is: 42,611.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,220.28 : 62,420.14 = 30,869.84 : x
  2. Step 2: Convert to fraction form
    45,220.28/62,420.14 = 30,869.84/x
  3. Step 3: Cross multiply
    45,220.28x = 62,420.14 × 30,869.84
  4. Step 4: Simplify right side
    45,220.28x = 1,926,899,734.58
  5. Step 5: Solve for x
    x = 1,926,899,734.58/45,220.28
  6. Step 6: Final answer
    x = 42,611.41

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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.