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Finding the Fourth Proportional to 63,154.69, 87,069.67 and 52,358.81

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Solution

The fourth proportional to 63,154.69, 87,069.67 and 52,358.81 is: 72,185.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,154.69 : 87,069.67 = 52,358.81 : x
  2. Step 2: Convert to fraction form
    63,154.69/87,069.67 = 52,358.81/x
  3. Step 3: Cross multiply
    63,154.69x = 87,069.67 × 52,358.81
  4. Step 4: Simplify right side
    63,154.69x = 4,558,863,742.05
  5. Step 5: Solve for x
    x = 4,558,863,742.05/63,154.69
  6. Step 6: Final answer
    x = 72,185.67

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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.