Home / 89,116.50-122,995.36-50,877.64

Finding the Fourth Proportional to 89,116.50, 122,995.36 and 50,877.64

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Solution

The fourth proportional to 89,116.50, 122,995.36 and 50,877.64 is: 70,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,116.50 : 122,995.36 = 50,877.64 : x
  2. Step 2: Convert to fraction form
    89,116.50/122,995.36 = 50,877.64/x
  3. Step 3: Cross multiply
    89,116.50x = 122,995.36 × 50,877.64
  4. Step 4: Simplify right side
    89,116.50x = 6,257,713,647.75
  5. Step 5: Solve for x
    x = 6,257,713,647.75/89,116.50
  6. Step 6: Final answer
    x = 70,219.47

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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.