Home / 68,705.08-102,977.70-56,246.20

Finding the Fourth Proportional to 68,705.08, 102,977.70 and 56,246.20

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Solution

The fourth proportional to 68,705.08, 102,977.70 and 56,246.20 is: 84,303.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,705.08 : 102,977.70 = 56,246.20 : x
  2. Step 2: Convert to fraction form
    68,705.08/102,977.70 = 56,246.20/x
  3. Step 3: Cross multiply
    68,705.08x = 102,977.70 × 56,246.20
  4. Step 4: Simplify right side
    68,705.08x = 5,792,104,309.74
  5. Step 5: Solve for x
    x = 5,792,104,309.74/68,705.08
  6. Step 6: Final answer
    x = 84,303.87

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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.