Home / 47,751.29-71,626.87-12,690.95

Finding the Fourth Proportional to 47,751.29, 71,626.87 and 12,690.95

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Solution

The fourth proportional to 47,751.29, 71,626.87 and 12,690.95 is: 19,036.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,751.29 : 71,626.87 = 12,690.95 : x
  2. Step 2: Convert to fraction form
    47,751.29/71,626.87 = 12,690.95/x
  3. Step 3: Cross multiply
    47,751.29x = 71,626.87 × 12,690.95
  4. Step 4: Simplify right side
    47,751.29x = 909,013,173.17
  5. Step 5: Solve for x
    x = 909,013,173.17/47,751.29
  6. Step 6: Final answer
    x = 19,036.41

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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.