Home / 42,361.49-63,542.69-12,779.58

Finding the Fourth Proportional to 42,361.49, 63,542.69 and 12,779.58

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Solution

The fourth proportional to 42,361.49, 63,542.69 and 12,779.58 is: 19,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,361.49 : 63,542.69 = 12,779.58 : x
  2. Step 2: Convert to fraction form
    42,361.49/63,542.69 = 12,779.58/x
  3. Step 3: Cross multiply
    42,361.49x = 63,542.69 × 12,779.58
  4. Step 4: Simplify right side
    42,361.49x = 812,048,890.27
  5. Step 5: Solve for x
    x = 812,048,890.27/42,361.49
  6. Step 6: Final answer
    x = 19,169.51

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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.