Home / 74,904.90-112,211.55-45,234.60

Finding the Fourth Proportional to 74,904.90, 112,211.55 and 45,234.60

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Solution

The fourth proportional to 74,904.90, 112,211.55 and 45,234.60 is: 67,763.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,904.90 : 112,211.55 = 45,234.60 : x
  2. Step 2: Convert to fraction form
    74,904.90/112,211.55 = 45,234.60/x
  3. Step 3: Cross multiply
    74,904.90x = 112,211.55 × 45,234.60
  4. Step 4: Simplify right side
    74,904.90x = 5,075,844,579.63
  5. Step 5: Solve for x
    x = 5,075,844,579.63/74,904.90
  6. Step 6: Final answer
    x = 67,763.85

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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.