Home / 66,260.90-99,396.20-18,875.09

Finding the Fourth Proportional to 66,260.90, 99,396.20 and 18,875.09

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Solution

The fourth proportional to 66,260.90, 99,396.20 and 18,875.09 is: 28,314.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,260.90 : 99,396.20 = 18,875.09 : x
  2. Step 2: Convert to fraction form
    66,260.90/99,396.20 = 18,875.09/x
  3. Step 3: Cross multiply
    66,260.90x = 99,396.20 × 18,875.09
  4. Step 4: Simplify right side
    66,260.90x = 1,876,111,770.86
  5. Step 5: Solve for x
    x = 1,876,111,770.86/66,260.90
  6. Step 6: Final answer
    x = 28,314.01

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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.