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Finding the Fourth Proportional to 88,266.56, 121,808.00 and 47,980.20

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Solution

The fourth proportional to 88,266.56, 121,808.00 and 47,980.20 is: 66,212.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,266.56 : 121,808.00 = 47,980.20 : x
  2. Step 2: Convert to fraction form
    88,266.56/121,808.00 = 47,980.20/x
  3. Step 3: Cross multiply
    88,266.56x = 121,808.00 × 47,980.20
  4. Step 4: Simplify right side
    88,266.56x = 5,844,372,093.16
  5. Step 5: Solve for x
    x = 5,844,372,093.16/88,266.56
  6. Step 6: Final answer
    x = 66,212.75

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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.