Home / 89,112.88-122,976.36-48,830.32

Finding the Fourth Proportional to 89,112.88, 122,976.36 and 48,830.32

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Solution

The fourth proportional to 89,112.88, 122,976.36 and 48,830.32 is: 67,386.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,112.88 : 122,976.36 = 48,830.32 : x
  2. Step 2: Convert to fraction form
    89,112.88/122,976.36 = 48,830.32/x
  3. Step 3: Cross multiply
    89,112.88x = 122,976.36 × 48,830.32
  4. Step 4: Simplify right side
    89,112.88x = 6,004,975,011.24
  5. Step 5: Solve for x
    x = 6,004,975,011.24/89,112.88
  6. Step 6: Final answer
    x = 67,386.16

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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.