Home / 48,307.20-72,491.20-20,604.80

Finding the Fourth Proportional to 48,307.20, 72,491.20 and 20,604.80

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Solution

The fourth proportional to 48,307.20, 72,491.20 and 20,604.80 is: 30,920.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,307.20 : 72,491.20 = 20,604.80 : x
  2. Step 2: Convert to fraction form
    48,307.20/72,491.20 = 20,604.80/x
  3. Step 3: Cross multiply
    48,307.20x = 72,491.20 × 20,604.80
  4. Step 4: Simplify right side
    48,307.20x = 1,493,666,677.76
  5. Step 5: Solve for x
    x = 1,493,666,677.76/48,307.20
  6. Step 6: Final answer
    x = 30,920.17

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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.