Home / 98,271.42-135,615-55,832.28

Finding the Fourth Proportional to 98,271.42, 135,615 and 55,832.28

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Solution

The fourth proportional to 98,271.42, 135,615 and 55,832.28 is: 77,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,271.42 : 135,615 = 55,832.28 : x
  2. Step 2: Convert to fraction form
    98,271.42/135,615 = 55,832.28/x
  3. Step 3: Cross multiply
    98,271.42x = 135,615 × 55,832.28
  4. Step 4: Simplify right side
    98,271.42x = 7,571,694,652.20
  5. Step 5: Solve for x
    x = 7,571,694,652.20/98,271.42
  6. Step 6: Final answer
    x = 77,048.80

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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.