Home / 79,688.04-109,923.62-49,828.20

Finding the Fourth Proportional to 79,688.04, 109,923.62 and 49,828.20

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Solution

The fourth proportional to 79,688.04, 109,923.62 and 49,828.20 is: 68,734.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,688.04 : 109,923.62 = 49,828.20 : x
  2. Step 2: Convert to fraction form
    79,688.04/109,923.62 = 49,828.20/x
  3. Step 3: Cross multiply
    79,688.04x = 109,923.62 × 49,828.20
  4. Step 4: Simplify right side
    79,688.04x = 5,477,296,122.08
  5. Step 5: Solve for x
    x = 5,477,296,122.08/79,688.04
  6. Step 6: Final answer
    x = 68,734.23

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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.