Home / 78,455.65-108,293.57-50,161.45

Finding the Fourth Proportional to 78,455.65, 108,293.57 and 50,161.45

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Solution

The fourth proportional to 78,455.65, 108,293.57 and 50,161.45 is: 69,238.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,455.65 : 108,293.57 = 50,161.45 : x
  2. Step 2: Convert to fraction form
    78,455.65/108,293.57 = 50,161.45/x
  3. Step 3: Cross multiply
    78,455.65x = 108,293.57 × 50,161.45
  4. Step 4: Simplify right side
    78,455.65x = 5,432,162,246.07
  5. Step 5: Solve for x
    x = 5,432,162,246.07/78,455.65
  6. Step 6: Final answer
    x = 69,238.64

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1.5x scale

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.