Home / 54,555.60-81,885.24-28,279.20

Finding the Fourth Proportional to 54,555.60, 81,885.24 and 28,279.20

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Solution

The fourth proportional to 54,555.60, 81,885.24 and 28,279.20 is: 42,445.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,555.60 : 81,885.24 = 28,279.20 : x
  2. Step 2: Convert to fraction form
    54,555.60/81,885.24 = 28,279.20/x
  3. Step 3: Cross multiply
    54,555.60x = 81,885.24 × 28,279.20
  4. Step 4: Simplify right side
    54,555.60x = 2,315,649,079.01
  5. Step 5: Solve for x
    x = 2,315,649,079.01/54,555.60
  6. Step 6: Final answer
    x = 42,445.67

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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.