Home / 78,529.16-117,794.99-19,364.85

Finding the Fourth Proportional to 78,529.16, 117,794.99 and 19,364.85

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Solution

The fourth proportional to 78,529.16, 117,794.99 and 19,364.85 is: 29,047.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,529.16 : 117,794.99 = 19,364.85 : x
  2. Step 2: Convert to fraction form
    78,529.16/117,794.99 = 19,364.85/x
  3. Step 3: Cross multiply
    78,529.16x = 117,794.99 × 19,364.85
  4. Step 4: Simplify right side
    78,529.16x = 2,281,082,312.10
  5. Step 5: Solve for x
    x = 2,281,082,312.10/78,529.16
  6. Step 6: Final answer
    x = 29,047.58

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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.