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Finding the Fourth Proportional to 65,527.84, 90,336.81 and 55,415.62

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Solution

The fourth proportional to 65,527.84, 90,336.81 and 55,415.62 is: 76,396.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,527.84 : 90,336.81 = 55,415.62 : x
  2. Step 2: Convert to fraction form
    65,527.84/90,336.81 = 55,415.62/x
  3. Step 3: Cross multiply
    65,527.84x = 90,336.81 × 55,415.62
  4. Step 4: Simplify right side
    65,527.84x = 5,006,070,334.97
  5. Step 5: Solve for x
    x = 5,006,070,334.97/65,527.84
  6. Step 6: Final answer
    x = 76,396.08

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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.