Home / 56,205.20-84,312.60-19,269.20

Finding the Fourth Proportional to 56,205.20, 84,312.60 and 19,269.20

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Solution

The fourth proportional to 56,205.20, 84,312.60 and 19,269.20 is: 28,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,205.20 : 84,312.60 = 19,269.20 : x
  2. Step 2: Convert to fraction form
    56,205.20/84,312.60 = 19,269.20/x
  3. Step 3: Cross multiply
    56,205.20x = 84,312.60 × 19,269.20
  4. Step 4: Simplify right side
    56,205.20x = 1,624,636,351.92
  5. Step 5: Solve for x
    x = 1,624,636,351.92/56,205.20
  6. Step 6: Final answer
    x = 28,905.45

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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.