Home / 74,669.12-103,007.06-47,790.08

Finding the Fourth Proportional to 74,669.12, 103,007.06 and 47,790.08

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Solution

The fourth proportional to 74,669.12, 103,007.06 and 47,790.08 is: 65,927.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,669.12 : 103,007.06 = 47,790.08 : x
  2. Step 2: Convert to fraction form
    74,669.12/103,007.06 = 47,790.08/x
  3. Step 3: Cross multiply
    74,669.12x = 103,007.06 × 47,790.08
  4. Step 4: Simplify right side
    74,669.12x = 4,922,715,637.96
  5. Step 5: Solve for x
    x = 4,922,715,637.96/74,669.12
  6. Step 6: Final answer
    x = 65,927.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.