Home / 51,148.74-76,692.39-19,998.66

Finding the Fourth Proportional to 51,148.74, 76,692.39 and 19,998.66

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Solution

The fourth proportional to 51,148.74, 76,692.39 and 19,998.66 is: 29,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,148.74 : 76,692.39 = 19,998.66 : x
  2. Step 2: Convert to fraction form
    51,148.74/76,692.39 = 19,998.66/x
  3. Step 3: Cross multiply
    51,148.74x = 76,692.39 × 19,998.66
  4. Step 4: Simplify right side
    51,148.74x = 1,533,745,032.20
  5. Step 5: Solve for x
    x = 1,533,745,032.20/51,148.74
  6. Step 6: Final answer
    x = 29,985.98

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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.