Home / 75,875.85-104,715.78-56,722.43

Finding the Fourth Proportional to 75,875.85, 104,715.78 and 56,722.43

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Solution

The fourth proportional to 75,875.85, 104,715.78 and 56,722.43 is: 78,282.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,875.85 : 104,715.78 = 56,722.43 : x
  2. Step 2: Convert to fraction form
    75,875.85/104,715.78 = 56,722.43/x
  3. Step 3: Cross multiply
    75,875.85x = 104,715.78 × 56,722.43
  4. Step 4: Simplify right side
    75,875.85x = 5,939,733,500.95
  5. Step 5: Solve for x
    x = 5,939,733,500.95/75,875.85
  6. Step 6: Final answer
    x = 78,282.27

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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.