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Finding the Fourth Proportional to 86,009.99, 118,697.74 and 47,769.71

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Solution

The fourth proportional to 86,009.99, 118,697.74 and 47,769.71 is: 65,924.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,009.99 : 118,697.74 = 47,769.71 : x
  2. Step 2: Convert to fraction form
    86,009.99/118,697.74 = 47,769.71/x
  3. Step 3: Cross multiply
    86,009.99x = 118,697.74 × 47,769.71
  4. Step 4: Simplify right side
    86,009.99x = 5,670,155,904.54
  5. Step 5: Solve for x
    x = 5,670,155,904.54/86,009.99
  6. Step 6: Final answer
    x = 65,924.39

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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.