Home / 78,298.59-117,369.05-45,008.67

Finding the Fourth Proportional to 78,298.59, 117,369.05 and 45,008.67

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Solution

The fourth proportional to 78,298.59, 117,369.05 and 45,008.67 is: 67,467.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,298.59 : 117,369.05 = 45,008.67 : x
  2. Step 2: Convert to fraction form
    78,298.59/117,369.05 = 45,008.67/x
  3. Step 3: Cross multiply
    78,298.59x = 117,369.05 × 45,008.67
  4. Step 4: Simplify right side
    78,298.59x = 5,282,624,614.62
  5. Step 5: Solve for x
    x = 5,282,624,614.62/78,298.59
  6. Step 6: Final answer
    x = 67,467.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.