Home / 42,790.87-64,170.58-14,702.95

Finding the Fourth Proportional to 42,790.87, 64,170.58 and 14,702.95

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Solution

The fourth proportional to 42,790.87, 64,170.58 and 14,702.95 is: 22,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,790.87 : 64,170.58 = 14,702.95 : x
  2. Step 2: Convert to fraction form
    42,790.87/64,170.58 = 14,702.95/x
  3. Step 3: Cross multiply
    42,790.87x = 64,170.58 × 14,702.95
  4. Step 4: Simplify right side
    42,790.87x = 943,496,900.23
  5. Step 5: Solve for x
    x = 943,496,900.23/42,790.87
  6. Step 6: Final answer
    x = 22,049.03

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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.