Home / 57,214.08-78,927.34-49,649.78

Finding the Fourth Proportional to 57,214.08, 78,927.34 and 49,649.78

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Solution

The fourth proportional to 57,214.08, 78,927.34 and 49,649.78 is: 68,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,214.08 : 78,927.34 = 49,649.78 : x
  2. Step 2: Convert to fraction form
    57,214.08/78,927.34 = 49,649.78/x
  3. Step 3: Cross multiply
    57,214.08x = 78,927.34 × 49,649.78
  4. Step 4: Simplify right side
    57,214.08x = 3,918,725,066.99
  5. Step 5: Solve for x
    x = 3,918,725,066.99/57,214.08
  6. Step 6: Final answer
    x = 68,492.32

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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.