Home / 71,546.12-98,739.06-39,721.16

Finding the Fourth Proportional to 71,546.12, 98,739.06 and 39,721.16

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Solution

The fourth proportional to 71,546.12, 98,739.06 and 39,721.16 is: 54,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,546.12 : 98,739.06 = 39,721.16 : x
  2. Step 2: Convert to fraction form
    71,546.12/98,739.06 = 39,721.16/x
  3. Step 3: Cross multiply
    71,546.12x = 98,739.06 × 39,721.16
  4. Step 4: Simplify right side
    71,546.12x = 3,922,030,000.51
  5. Step 5: Solve for x
    x = 3,922,030,000.51/71,546.12
  6. Step 6: Final answer
    x = 54,818.21

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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.