Home / 83,775.34-125,704.01-39,406.56

Finding the Fourth Proportional to 83,775.34, 125,704.01 and 39,406.56

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Solution

The fourth proportional to 83,775.34, 125,704.01 and 39,406.56 is: 59,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,775.34 : 125,704.01 = 39,406.56 : x
  2. Step 2: Convert to fraction form
    83,775.34/125,704.01 = 39,406.56/x
  3. Step 3: Cross multiply
    83,775.34x = 125,704.01 × 39,406.56
  4. Step 4: Simplify right side
    83,775.34x = 4,953,562,612.31
  5. Step 5: Solve for x
    x = 4,953,562,612.31/83,775.34
  6. Step 6: Final answer
    x = 59,129.13

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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.