Home / 48,559.84-72,868.01-20,478.15

Finding the Fourth Proportional to 48,559.84, 72,868.01 and 20,478.15

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Solution

The fourth proportional to 48,559.84, 72,868.01 and 20,478.15 is: 30,729.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,559.84 : 72,868.01 = 20,478.15 : x
  2. Step 2: Convert to fraction form
    48,559.84/72,868.01 = 20,478.15/x
  3. Step 3: Cross multiply
    48,559.84x = 72,868.01 × 20,478.15
  4. Step 4: Simplify right side
    48,559.84x = 1,492,201,936.59
  5. Step 5: Solve for x
    x = 1,492,201,936.59/48,559.84
  6. Step 6: Final answer
    x = 30,729.14

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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.