Home / 85,847.22-118,416.87-56,775.51

Finding the Fourth Proportional to 85,847.22, 118,416.87 and 56,775.51

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Solution

The fourth proportional to 85,847.22, 118,416.87 and 56,775.51 is: 78,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847.22 : 118,416.87 = 56,775.51 : x
  2. Step 2: Convert to fraction form
    85,847.22/118,416.87 = 56,775.51/x
  3. Step 3: Cross multiply
    85,847.22x = 118,416.87 × 56,775.51
  4. Step 4: Simplify right side
    85,847.22x = 6,723,178,186.85
  5. Step 5: Solve for x
    x = 6,723,178,186.85/85,847.22
  6. Step 6: Final answer
    x = 78,315.62

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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.