Home / 74,819.08-112,162.90-30,483.12

Finding the Fourth Proportional to 74,819.08, 112,162.90 and 30,483.12

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Solution

The fourth proportional to 74,819.08, 112,162.90 and 30,483.12 is: 45,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,819.08 : 112,162.90 = 30,483.12 : x
  2. Step 2: Convert to fraction form
    74,819.08/112,162.90 = 30,483.12/x
  3. Step 3: Cross multiply
    74,819.08x = 112,162.90 × 30,483.12
  4. Step 4: Simplify right side
    74,819.08x = 3,419,075,140.25
  5. Step 5: Solve for x
    x = 3,419,075,140.25/74,819.08
  6. Step 6: Final answer
    x = 45,697.90

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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.