Home / 89,130.42-122,980.68-52,843.32

Finding the Fourth Proportional to 89,130.42, 122,980.68 and 52,843.32

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Solution

The fourth proportional to 89,130.42, 122,980.68 and 52,843.32 is: 72,912.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,130.42 : 122,980.68 = 52,843.32 : x
  2. Step 2: Convert to fraction form
    89,130.42/122,980.68 = 52,843.32/x
  3. Step 3: Cross multiply
    89,130.42x = 122,980.68 × 52,843.32
  4. Step 4: Simplify right side
    89,130.42x = 6,498,707,427.06
  5. Step 5: Solve for x
    x = 6,498,707,427.06/89,130.42
  6. Step 6: Final answer
    x = 72,912.34

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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.