Home / 78,477.58-117,698.62-22,316.45

Finding the Fourth Proportional to 78,477.58, 117,698.62 and 22,316.45

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Solution

The fourth proportional to 78,477.58, 117,698.62 and 22,316.45 is: 33,469.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,477.58 : 117,698.62 = 22,316.45 : x
  2. Step 2: Convert to fraction form
    78,477.58/117,698.62 = 22,316.45/x
  3. Step 3: Cross multiply
    78,477.58x = 117,698.62 × 22,316.45
  4. Step 4: Simplify right side
    78,477.58x = 2,626,615,256.72
  5. Step 5: Solve for x
    x = 2,626,615,256.72/78,477.58
  6. Step 6: Final answer
    x = 33,469.63

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1.5x scale

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.