Home / 78,215.63-117,345.51-22,056.27

Finding the Fourth Proportional to 78,215.63, 117,345.51 and 22,056.27

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Solution

The fourth proportional to 78,215.63, 117,345.51 and 22,056.27 is: 33,090.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,215.63 : 117,345.51 = 22,056.27 : x
  2. Step 2: Convert to fraction form
    78,215.63/117,345.51 = 22,056.27/x
  3. Step 3: Cross multiply
    78,215.63x = 117,345.51 × 22,056.27
  4. Step 4: Simplify right side
    78,215.63x = 2,588,203,811.80
  5. Step 5: Solve for x
    x = 2,588,203,811.80/78,215.63
  6. Step 6: Final answer
    x = 33,090.62

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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.