Home / 66,367.36-99,548.13-21,387.71

Finding the Fourth Proportional to 66,367.36, 99,548.13 and 21,387.71

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Solution

The fourth proportional to 66,367.36, 99,548.13 and 21,387.71 is: 32,080.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,367.36 : 99,548.13 = 21,387.71 : x
  2. Step 2: Convert to fraction form
    66,367.36/99,548.13 = 21,387.71/x
  3. Step 3: Cross multiply
    66,367.36x = 99,548.13 × 21,387.71
  4. Step 4: Simplify right side
    66,367.36x = 2,129,106,535.48
  5. Step 5: Solve for x
    x = 2,129,106,535.48/66,367.36
  6. Step 6: Final answer
    x = 32,080.63

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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.