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Finding the Fourth Proportional to 98,101.98, 135,376.65 and 55,662.84

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Solution

The fourth proportional to 98,101.98, 135,376.65 and 55,662.84 is: 76,812.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,101.98 : 135,376.65 = 55,662.84 : x
  2. Step 2: Convert to fraction form
    98,101.98/135,376.65 = 55,662.84/x
  3. Step 3: Cross multiply
    98,101.98x = 135,376.65 × 55,662.84
  4. Step 4: Simplify right side
    98,101.98x = 7,535,448,808.69
  5. Step 5: Solve for x
    x = 7,535,448,808.69/98,101.98
  6. Step 6: Final answer
    x = 76,812.40

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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.