Home / 57,457.15-79,225.49-40,455.96

Finding the Fourth Proportional to 57,457.15, 79,225.49 and 40,455.96

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Solution

The fourth proportional to 57,457.15, 79,225.49 and 40,455.96 is: 55,783.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,457.15 : 79,225.49 = 40,455.96 : x
  2. Step 2: Convert to fraction form
    57,457.15/79,225.49 = 40,455.96/x
  3. Step 3: Cross multiply
    57,457.15x = 79,225.49 × 40,455.96
  4. Step 4: Simplify right side
    57,457.15x = 3,205,143,254.42
  5. Step 5: Solve for x
    x = 3,205,143,254.42/57,457.15
  6. Step 6: Final answer
    x = 55,783.19

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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.