Home / 66,308.45-99,465.39-19,561.32

Finding the Fourth Proportional to 66,308.45, 99,465.39 and 19,561.32

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Solution

The fourth proportional to 66,308.45, 99,465.39 and 19,561.32 is: 29,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,308.45 : 99,465.39 = 19,561.32 : x
  2. Step 2: Convert to fraction form
    66,308.45/99,465.39 = 19,561.32/x
  3. Step 3: Cross multiply
    66,308.45x = 99,465.39 × 19,561.32
  4. Step 4: Simplify right side
    66,308.45x = 1,945,674,322.71
  5. Step 5: Solve for x
    x = 1,945,674,322.71/66,308.45
  6. Step 6: Final answer
    x = 29,342.78

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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.