Home / 57,720.24-86,492.76-42,859.56

Finding the Fourth Proportional to 57,720.24, 86,492.76 and 42,859.56

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Solution

The fourth proportional to 57,720.24, 86,492.76 and 42,859.56 is: 64,224.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,720.24 : 86,492.76 = 42,859.56 : x
  2. Step 2: Convert to fraction form
    57,720.24/86,492.76 = 42,859.56/x
  3. Step 3: Cross multiply
    57,720.24x = 86,492.76 × 42,859.56
  4. Step 4: Simplify right side
    57,720.24x = 3,707,041,636.79
  5. Step 5: Solve for x
    x = 3,707,041,636.79/57,720.24
  6. Step 6: Final answer
    x = 64,224.29

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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.