Home / 317,749.08-476,623.21-81,091.77

Finding the Fourth Proportional to 317,749.08, 476,623.21 and 81,091.77

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Solution

The fourth proportional to 317,749.08, 476,623.21 and 81,091.77 is: 121,637.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,749.08 : 476,623.21 = 81,091.77 : x
  2. Step 2: Convert to fraction form
    317,749.08/476,623.21 = 81,091.77/x
  3. Step 3: Cross multiply
    317,749.08x = 476,623.21 × 81,091.77
  4. Step 4: Simplify right side
    317,749.08x = 38,650,219,721.98
  5. Step 5: Solve for x
    x = 38,650,219,721.98/317,749.08
  6. Step 6: Final answer
    x = 121,637.55

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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.