Home / 87,465.04-120,769.57-68,311.38

Finding the Fourth Proportional to 87,465.04, 120,769.57 and 68,311.38

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Solution

The fourth proportional to 87,465.04, 120,769.57 and 68,311.38 is: 94,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,465.04 : 120,769.57 = 68,311.38 : x
  2. Step 2: Convert to fraction form
    87,465.04/120,769.57 = 68,311.38/x
  3. Step 3: Cross multiply
    87,465.04x = 120,769.57 × 68,311.38
  4. Step 4: Simplify right side
    87,465.04x = 8,249,935,988.71
  5. Step 5: Solve for x
    x = 8,249,935,988.71/87,465.04
  6. Step 6: Final answer
    x = 94,322.67

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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.