Home / 79,734.24-109,989.36-55,896.48

Finding the Fourth Proportional to 79,734.24, 109,989.36 and 55,896.48

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Solution

The fourth proportional to 79,734.24, 109,989.36 and 55,896.48 is: 77,106.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,734.24 : 109,989.36 = 55,896.48 : x
  2. Step 2: Convert to fraction form
    79,734.24/109,989.36 = 55,896.48/x
  3. Step 3: Cross multiply
    79,734.24x = 109,989.36 × 55,896.48
  4. Step 4: Simplify right side
    79,734.24x = 6,148,018,061.45
  5. Step 5: Solve for x
    x = 6,148,018,061.45/79,734.24
  6. Step 6: Final answer
    x = 77,106.37

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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.