Home / 51,603.31-71,211.64-28,942.34

Finding the Fourth Proportional to 51,603.31, 71,211.64 and 28,942.34

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Solution

The fourth proportional to 51,603.31, 71,211.64 and 28,942.34 is: 39,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,603.31 : 71,211.64 = 28,942.34 : x
  2. Step 2: Convert to fraction form
    51,603.31/71,211.64 = 28,942.34/x
  3. Step 3: Cross multiply
    51,603.31x = 71,211.64 × 28,942.34
  4. Step 4: Simplify right side
    51,603.31x = 2,061,031,352.13
  5. Step 5: Solve for x
    x = 2,061,031,352.13/51,603.31
  6. Step 6: Final answer
    x = 39,939.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.