Home / 66,036.64-99,058.32-19,293.28

Finding the Fourth Proportional to 66,036.64, 99,058.32 and 19,293.28

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Solution

The fourth proportional to 66,036.64, 99,058.32 and 19,293.28 is: 28,940.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,036.64 : 99,058.32 = 19,293.28 : x
  2. Step 2: Convert to fraction form
    66,036.64/99,058.32 = 19,293.28/x
  3. Step 3: Cross multiply
    66,036.64x = 99,058.32 × 19,293.28
  4. Step 4: Simplify right side
    66,036.64x = 1,911,159,904.09
  5. Step 5: Solve for x
    x = 1,911,159,904.09/66,036.64
  6. Step 6: Final answer
    x = 28,940.90

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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.