Home / 42,091.08-63,136.74-12,509.04

Finding the Fourth Proportional to 42,091.08, 63,136.74 and 12,509.04

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Solution

The fourth proportional to 42,091.08, 63,136.74 and 12,509.04 is: 18,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,091.08 : 63,136.74 = 12,509.04 : x
  2. Step 2: Convert to fraction form
    42,091.08/63,136.74 = 12,509.04/x
  3. Step 3: Cross multiply
    42,091.08x = 63,136.74 × 12,509.04
  4. Step 4: Simplify right side
    42,091.08x = 789,780,006.13
  5. Step 5: Solve for x
    x = 789,780,006.13/42,091.08
  6. Step 6: Final answer
    x = 18,763.60

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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.