Home / 317,748.32-476,622.03-81,090.99

Finding the Fourth Proportional to 317,748.32, 476,622.03 and 81,090.99

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Solution

The fourth proportional to 317,748.32, 476,622.03 and 81,090.99 is: 121,636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,748.32 : 476,622.03 = 81,090.99 : x
  2. Step 2: Convert to fraction form
    317,748.32/476,622.03 = 81,090.99/x
  3. Step 3: Cross multiply
    317,748.32x = 476,622.03 × 81,090.99
  4. Step 4: Simplify right side
    317,748.32x = 38,649,749,885.40
  5. Step 5: Solve for x
    x = 38,649,749,885.40/317,748.32
  6. Step 6: Final answer
    x = 121,636.36

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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.