Home / 66,267.10-99,366.60-19,513.90

Finding the Fourth Proportional to 66,267.10, 99,366.60 and 19,513.90

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Solution

The fourth proportional to 66,267.10, 99,366.60 and 19,513.90 is: 29,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,267.10 : 99,366.60 = 19,513.90 : x
  2. Step 2: Convert to fraction form
    66,267.10/99,366.60 = 19,513.90/x
  3. Step 3: Cross multiply
    66,267.10x = 99,366.60 × 19,513.90
  4. Step 4: Simplify right side
    66,267.10x = 1,939,029,895.74
  5. Step 5: Solve for x
    x = 1,939,029,895.74/66,267.10
  6. Step 6: Final answer
    x = 29,260.82

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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.