Home / 88,219.36-121,748.16-50,492.80

Finding the Fourth Proportional to 88,219.36, 121,748.16 and 50,492.80

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Solution

The fourth proportional to 88,219.36, 121,748.16 and 50,492.80 is: 69,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,219.36 : 121,748.16 = 50,492.80 : x
  2. Step 2: Convert to fraction form
    88,219.36/121,748.16 = 50,492.80/x
  3. Step 3: Cross multiply
    88,219.36x = 121,748.16 × 50,492.80
  4. Step 4: Simplify right side
    88,219.36x = 6,147,405,493.25
  5. Step 5: Solve for x
    x = 6,147,405,493.25/88,219.36
  6. Step 6: Final answer
    x = 69,683.18

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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.