Home / 71,464.02-98,626.26-39,643.20

Finding the Fourth Proportional to 71,464.02, 98,626.26 and 39,643.20

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Solution

The fourth proportional to 71,464.02, 98,626.26 and 39,643.20 is: 54,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,464.02 : 98,626.26 = 39,643.20 : x
  2. Step 2: Convert to fraction form
    71,464.02/98,626.26 = 39,643.20/x
  3. Step 3: Cross multiply
    71,464.02x = 98,626.26 × 39,643.20
  4. Step 4: Simplify right side
    71,464.02x = 3,909,860,550.43
  5. Step 5: Solve for x
    x = 3,909,860,550.43/71,464.02
  6. Step 6: Final answer
    x = 54,710.90

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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.