Home / 66,366.36-99,546.64-21,386.71

Finding the Fourth Proportional to 66,366.36, 99,546.64 and 21,386.71

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Solution

The fourth proportional to 66,366.36, 99,546.64 and 21,386.71 is: 32,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,366.36 : 99,546.64 = 21,386.71 : x
  2. Step 2: Convert to fraction form
    66,366.36/99,546.64 = 21,386.71/x
  3. Step 3: Cross multiply
    66,366.36x = 99,546.64 × 21,386.71
  4. Step 4: Simplify right side
    66,366.36x = 2,128,975,014.22
  5. Step 5: Solve for x
    x = 2,128,975,014.22/66,366.36
  6. Step 6: Final answer
    x = 32,079.13

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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.