Home / 78,880.67-118,322.03-22,721.70

Finding the Fourth Proportional to 78,880.67, 118,322.03 and 22,721.70

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Solution

The fourth proportional to 78,880.67, 118,322.03 and 22,721.70 is: 34,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880.67 : 118,322.03 = 22,721.70 : x
  2. Step 2: Convert to fraction form
    78,880.67/118,322.03 = 22,721.70/x
  3. Step 3: Cross multiply
    78,880.67x = 118,322.03 × 22,721.70
  4. Step 4: Simplify right side
    78,880.67x = 2,688,477,669.05
  5. Step 5: Solve for x
    x = 2,688,477,669.05/78,880.67
  6. Step 6: Final answer
    x = 34,082.85

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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.