Home / 88,285.36-121,852.80-54,322.72

Finding the Fourth Proportional to 88,285.36, 121,852.80 and 54,322.72

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Solution

The fourth proportional to 88,285.36, 121,852.80 and 54,322.72 is: 74,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,285.36 : 121,852.80 = 54,322.72 : x
  2. Step 2: Convert to fraction form
    88,285.36/121,852.80 = 54,322.72/x
  3. Step 3: Cross multiply
    88,285.36x = 121,852.80 × 54,322.72
  4. Step 4: Simplify right side
    88,285.36x = 6,619,375,535.62
  5. Step 5: Solve for x
    x = 6,619,375,535.62/88,285.36
  6. Step 6: Final answer
    x = 74,977.05

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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.