Home / 66,685.37-99,970.08-27,217.31

Finding the Fourth Proportional to 66,685.37, 99,970.08 and 27,217.31

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Solution

The fourth proportional to 66,685.37, 99,970.08 and 27,217.31 is: 40,802.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,685.37 : 99,970.08 = 27,217.31 : x
  2. Step 2: Convert to fraction form
    66,685.37/99,970.08 = 27,217.31/x
  3. Step 3: Cross multiply
    66,685.37x = 99,970.08 × 27,217.31
  4. Step 4: Simplify right side
    66,685.37x = 2,720,916,158.23
  5. Step 5: Solve for x
    x = 2,720,916,158.23/66,685.37
  6. Step 6: Final answer
    x = 40,802.30

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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.