Home / 66,290.47-99,436.51-19,544.29

Finding the Fourth Proportional to 66,290.47, 99,436.51 and 19,544.29

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Solution

The fourth proportional to 66,290.47, 99,436.51 and 19,544.29 is: 29,316.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,290.47 : 99,436.51 = 19,544.29 : x
  2. Step 2: Convert to fraction form
    66,290.47/99,436.51 = 19,544.29/x
  3. Step 3: Cross multiply
    66,290.47x = 99,436.51 × 19,544.29
  4. Step 4: Simplify right side
    66,290.47x = 1,943,415,763.87
  5. Step 5: Solve for x
    x = 1,943,415,763.87/66,290.47
  6. Step 6: Final answer
    x = 29,316.67

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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.