Home / 62,130.80-85,694.24-39,450.12

Finding the Fourth Proportional to 62,130.80, 85,694.24 and 39,450.12

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Solution

The fourth proportional to 62,130.80, 85,694.24 and 39,450.12 is: 54,411.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,130.80 : 85,694.24 = 39,450.12 : x
  2. Step 2: Convert to fraction form
    62,130.80/85,694.24 = 39,450.12/x
  3. Step 3: Cross multiply
    62,130.80x = 85,694.24 × 39,450.12
  4. Step 4: Simplify right side
    62,130.80x = 3,380,648,051.31
  5. Step 5: Solve for x
    x = 3,380,648,051.31/62,130.80
  6. Step 6: Final answer
    x = 54,411.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.