Home / 42,165.20-63,247.80-40,415.60

Finding the Fourth Proportional to 42,165.20, 63,247.80 and 40,415.60

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Solution

The fourth proportional to 42,165.20, 63,247.80 and 40,415.60 is: 60,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,165.20 : 63,247.80 = 40,415.60 : x
  2. Step 2: Convert to fraction form
    42,165.20/63,247.80 = 40,415.60/x
  3. Step 3: Cross multiply
    42,165.20x = 63,247.80 × 40,415.60
  4. Step 4: Simplify right side
    42,165.20x = 2,556,197,785.68
  5. Step 5: Solve for x
    x = 2,556,197,785.68/42,165.20
  6. Step 6: Final answer
    x = 60,623.40

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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.