Home / 72,975.08-109,435.74-26,215.40

Finding the Fourth Proportional to 72,975.08, 109,435.74 and 26,215.40

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Solution

The fourth proportional to 72,975.08, 109,435.74 and 26,215.40 is: 39,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,975.08 : 109,435.74 = 26,215.40 : x
  2. Step 2: Convert to fraction form
    72,975.08/109,435.74 = 26,215.40/x
  3. Step 3: Cross multiply
    72,975.08x = 109,435.74 × 26,215.40
  4. Step 4: Simplify right side
    72,975.08x = 2,868,901,698.40
  5. Step 5: Solve for x
    x = 2,868,901,698.40/72,975.08
  6. Step 6: Final answer
    x = 39,313.44

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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.