Home / 317,778.24-476,666.76-81,120.84

Finding the Fourth Proportional to 317,778.24, 476,666.76 and 81,120.84

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Solution

The fourth proportional to 317,778.24, 476,666.76 and 81,120.84 is: 121,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,778.24 : 476,666.76 = 81,120.84 : x
  2. Step 2: Convert to fraction form
    317,778.24/476,666.76 = 81,120.84/x
  3. Step 3: Cross multiply
    317,778.24x = 476,666.76 × 81,120.84
  4. Step 4: Simplify right side
    317,778.24x = 38,667,607,971.28
  5. Step 5: Solve for x
    x = 38,667,607,971.28/317,778.24
  6. Step 6: Final answer
    x = 121,681.11

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1.5x scale

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.