Home / 42,098.70-63,125.91-12,512.10

Finding the Fourth Proportional to 42,098.70, 63,125.91 and 12,512.10

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Solution

The fourth proportional to 42,098.70, 63,125.91 and 12,512.10 is: 18,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,098.70 : 63,125.91 = 12,512.10 : x
  2. Step 2: Convert to fraction form
    42,098.70/63,125.91 = 12,512.10/x
  3. Step 3: Cross multiply
    42,098.70x = 63,125.91 × 12,512.10
  4. Step 4: Simplify right side
    42,098.70x = 789,837,698.51
  5. Step 5: Solve for x
    x = 789,837,698.51/42,098.70
  6. Step 6: Final answer
    x = 18,761.57

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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.