Home / 47,616.20-65,680.64-30,642.60

Finding the Fourth Proportional to 47,616.20, 65,680.64 and 30,642.60

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Solution

The fourth proportional to 47,616.20, 65,680.64 and 30,642.60 is: 42,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,616.20 : 65,680.64 = 30,642.60 : x
  2. Step 2: Convert to fraction form
    47,616.20/65,680.64 = 30,642.60/x
  3. Step 3: Cross multiply
    47,616.20x = 65,680.64 × 30,642.60
  4. Step 4: Simplify right side
    47,616.20x = 2,012,625,579.26
  5. Step 5: Solve for x
    x = 2,012,625,579.26/47,616.20
  6. Step 6: Final answer
    x = 42,267.66

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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.