Home / 74,579.20-102,921.60-40,590.16

Finding the Fourth Proportional to 74,579.20, 102,921.60 and 40,590.16

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Solution

The fourth proportional to 74,579.20, 102,921.60 and 40,590.16 is: 56,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,579.20 : 102,921.60 = 40,590.16 : x
  2. Step 2: Convert to fraction form
    74,579.20/102,921.60 = 40,590.16/x
  3. Step 3: Cross multiply
    74,579.20x = 102,921.60 × 40,590.16
  4. Step 4: Simplify right side
    74,579.20x = 4,177,604,211.46
  5. Step 5: Solve for x
    x = 4,177,604,211.46/74,579.20
  6. Step 6: Final answer
    x = 56,015.67

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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.