Home / 317,748.08-476,621.72-81,090.77

Finding the Fourth Proportional to 317,748.08, 476,621.72 and 81,090.77

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Solution

The fourth proportional to 317,748.08, 476,621.72 and 81,090.77 is: 121,636.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,748.08 : 476,621.72 = 81,090.77 : x
  2. Step 2: Convert to fraction form
    317,748.08/476,621.72 = 81,090.77/x
  3. Step 3: Cross multiply
    317,748.08x = 476,621.72 × 81,090.77
  4. Step 4: Simplify right side
    317,748.08x = 38,649,619,484.96
  5. Step 5: Solve for x
    x = 38,649,619,484.96/317,748.08
  6. Step 6: Final answer
    x = 121,636.04

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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.