Home / 42,045.75-63,078.62-14,343.75

Finding the Fourth Proportional to 42,045.75, 63,078.62 and 14,343.75

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Solution

The fourth proportional to 42,045.75, 63,078.62 and 14,343.75 is: 21,519.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,045.75 : 63,078.62 = 14,343.75 : x
  2. Step 2: Convert to fraction form
    42,045.75/63,078.62 = 14,343.75/x
  3. Step 3: Cross multiply
    42,045.75x = 63,078.62 × 14,343.75
  4. Step 4: Simplify right side
    42,045.75x = 904,783,883.91
  5. Step 5: Solve for x
    x = 904,783,883.91/42,045.75
  6. Step 6: Final answer
    x = 21,519.03

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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.