Home / 79,448.02-109,638.19-43,637.72

Finding the Fourth Proportional to 79,448.02, 109,638.19 and 43,637.72

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Solution

The fourth proportional to 79,448.02, 109,638.19 and 43,637.72 is: 60,220.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,448.02 : 109,638.19 = 43,637.72 : x
  2. Step 2: Convert to fraction form
    79,448.02/109,638.19 = 43,637.72/x
  3. Step 3: Cross multiply
    79,448.02x = 109,638.19 × 43,637.72
  4. Step 4: Simplify right side
    79,448.02x = 4,784,360,142.88
  5. Step 5: Solve for x
    x = 4,784,360,142.88/79,448.02
  6. Step 6: Final answer
    x = 60,220.01

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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.