Home / 66,201.12-91,357.74-37,907.28

Finding the Fourth Proportional to 66,201.12, 91,357.74 and 37,907.28

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Solution

The fourth proportional to 66,201.12, 91,357.74 and 37,907.28 is: 52,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,201.12 : 91,357.74 = 37,907.28 : x
  2. Step 2: Convert to fraction form
    66,201.12/91,357.74 = 37,907.28/x
  3. Step 3: Cross multiply
    66,201.12x = 91,357.74 × 37,907.28
  4. Step 4: Simplify right side
    66,201.12x = 3,463,123,430.35
  5. Step 5: Solve for x
    x = 3,463,123,430.35/66,201.12
  6. Step 6: Final answer
    x = 52,312.16

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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.