Home / 71,907.50-99,235.73-40,076.63

Finding the Fourth Proportional to 71,907.50, 99,235.73 and 40,076.63

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Solution

The fourth proportional to 71,907.50, 99,235.73 and 40,076.63 is: 55,307.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,907.50 : 99,235.73 = 40,076.63 : x
  2. Step 2: Convert to fraction form
    71,907.50/99,235.73 = 40,076.63/x
  3. Step 3: Cross multiply
    71,907.50x = 99,235.73 × 40,076.63
  4. Step 4: Simplify right side
    71,907.50x = 3,977,033,633.99
  5. Step 5: Solve for x
    x = 3,977,033,633.99/71,907.50
  6. Step 6: Final answer
    x = 55,307.63

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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.