Home / 65,450.64-98,179.56-21,074.16

Finding the Fourth Proportional to 65,450.64, 98,179.56 and 21,074.16

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Solution

The fourth proportional to 65,450.64, 98,179.56 and 21,074.16 is: 31,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,450.64 : 98,179.56 = 21,074.16 : x
  2. Step 2: Convert to fraction form
    65,450.64/98,179.56 = 21,074.16/x
  3. Step 3: Cross multiply
    65,450.64x = 98,179.56 × 21,074.16
  4. Step 4: Simplify right side
    65,450.64x = 2,069,051,756.17
  5. Step 5: Solve for x
    x = 2,069,051,756.17/65,450.64
  6. Step 6: Final answer
    x = 31,612.40

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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.