Home / 57,457.19-79,225.53-40,455.99

Finding the Fourth Proportional to 57,457.19, 79,225.53 and 40,455.99

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Solution

The fourth proportional to 57,457.19, 79,225.53 and 40,455.99 is: 55,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,457.19 : 79,225.53 = 40,455.99 : x
  2. Step 2: Convert to fraction form
    57,457.19/79,225.53 = 40,455.99/x
  3. Step 3: Cross multiply
    57,457.19x = 79,225.53 × 40,455.99
  4. Step 4: Simplify right side
    57,457.19x = 3,205,147,249.42
  5. Step 5: Solve for x
    x = 3,205,147,249.42/57,457.19
  6. Step 6: Final answer
    x = 55,783.23

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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.