Home / 47,775.70-71,663.55-12,718.90

Finding the Fourth Proportional to 47,775.70, 71,663.55 and 12,718.90

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Solution

The fourth proportional to 47,775.70, 71,663.55 and 12,718.90 is: 19,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,775.70 : 71,663.55 = 12,718.90 : x
  2. Step 2: Convert to fraction form
    47,775.70/71,663.55 = 12,718.90/x
  3. Step 3: Cross multiply
    47,775.70x = 71,663.55 × 12,718.90
  4. Step 4: Simplify right side
    47,775.70x = 911,481,526.10
  5. Step 5: Solve for x
    x = 911,481,526.10/47,775.70
  6. Step 6: Final answer
    x = 19,078.35

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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.