Home / 78,208.04-107,898.81-51,365.09

Finding the Fourth Proportional to 78,208.04, 107,898.81 and 51,365.09

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Solution

The fourth proportional to 78,208.04, 107,898.81 and 51,365.09 is: 70,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,208.04 : 107,898.81 = 51,365.09 : x
  2. Step 2: Convert to fraction form
    78,208.04/107,898.81 = 51,365.09/x
  3. Step 3: Cross multiply
    78,208.04x = 107,898.81 × 51,365.09
  4. Step 4: Simplify right side
    78,208.04x = 5,542,232,086.54
  5. Step 5: Solve for x
    x = 5,542,232,086.54/78,208.04
  6. Step 6: Final answer
    x = 70,865.25

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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.