Home / 66,170.33-91,322.91-39,312.93

Finding the Fourth Proportional to 66,170.33, 91,322.91 and 39,312.93

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Solution

The fourth proportional to 66,170.33, 91,322.91 and 39,312.93 is: 54,256.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,170.33 : 91,322.91 = 39,312.93 : x
  2. Step 2: Convert to fraction form
    66,170.33/91,322.91 = 39,312.93/x
  3. Step 3: Cross multiply
    66,170.33x = 91,322.91 × 39,312.93
  4. Step 4: Simplify right side
    66,170.33x = 3,590,171,168.23
  5. Step 5: Solve for x
    x = 3,590,171,168.23/66,170.33
  6. Step 6: Final answer
    x = 54,256.51

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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.