Home / 66,450.36-91,709.28-37,774.32

Finding the Fourth Proportional to 66,450.36, 91,709.28 and 37,774.32

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Solution

The fourth proportional to 66,450.36, 91,709.28 and 37,774.32 is: 52,132.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,450.36 : 91,709.28 = 37,774.32 : x
  2. Step 2: Convert to fraction form
    66,450.36/91,709.28 = 37,774.32/x
  3. Step 3: Cross multiply
    66,450.36x = 91,709.28 × 37,774.32
  4. Step 4: Simplify right side
    66,450.36x = 3,464,255,689.69
  5. Step 5: Solve for x
    x = 3,464,255,689.69/66,450.36
  6. Step 6: Final answer
    x = 52,132.99

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1.5x scale

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.