Home / 57,742.72-86,445.12-52,208.80

Finding the Fourth Proportional to 57,742.72, 86,445.12 and 52,208.80

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Solution

The fourth proportional to 57,742.72, 86,445.12 and 52,208.80 is: 78,160.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,742.72 : 86,445.12 = 52,208.80 : x
  2. Step 2: Convert to fraction form
    57,742.72/86,445.12 = 52,208.80/x
  3. Step 3: Cross multiply
    57,742.72x = 86,445.12 × 52,208.80
  4. Step 4: Simplify right side
    57,742.72x = 4,513,195,981.06
  5. Step 5: Solve for x
    x = 4,513,195,981.06/57,742.72
  6. Step 6: Final answer
    x = 78,160.43

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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.