Home / 77,546.25-116,315.43-21,386.88

Finding the Fourth Proportional to 77,546.25, 116,315.43 and 21,386.88

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Solution

The fourth proportional to 77,546.25, 116,315.43 and 21,386.88 is: 32,079.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,546.25 : 116,315.43 = 21,386.88 : x
  2. Step 2: Convert to fraction form
    77,546.25/116,315.43 = 21,386.88/x
  3. Step 3: Cross multiply
    77,546.25x = 116,315.43 × 21,386.88
  4. Step 4: Simplify right side
    77,546.25x = 2,487,624,143.56
  5. Step 5: Solve for x
    x = 2,487,624,143.56/77,546.25
  6. Step 6: Final answer
    x = 32,079.23

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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.