Home / 88,297.36-121,869.40-54,334.72

Finding the Fourth Proportional to 88,297.36, 121,869.40 and 54,334.72

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Solution

The fourth proportional to 88,297.36, 121,869.40 and 54,334.72 is: 74,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,297.36 : 121,869.40 = 54,334.72 : x
  2. Step 2: Convert to fraction form
    88,297.36/121,869.40 = 54,334.72/x
  3. Step 3: Cross multiply
    88,297.36x = 121,869.40 × 54,334.72
  4. Step 4: Simplify right side
    88,297.36x = 6,621,739,725.57
  5. Step 5: Solve for x
    x = 6,621,739,725.57/88,297.36
  6. Step 6: Final answer
    x = 74,993.63

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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.