Home / 66,141.08-91,224.66-45,987.87

Finding the Fourth Proportional to 66,141.08, 91,224.66 and 45,987.87

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Solution

The fourth proportional to 66,141.08, 91,224.66 and 45,987.87 is: 63,428.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,141.08 : 91,224.66 = 45,987.87 : x
  2. Step 2: Convert to fraction form
    66,141.08/91,224.66 = 45,987.87/x
  3. Step 3: Cross multiply
    66,141.08x = 91,224.66 × 45,987.87
  4. Step 4: Simplify right side
    66,141.08x = 4,195,227,804.87
  5. Step 5: Solve for x
    x = 4,195,227,804.87/66,141.08
  6. Step 6: Final answer
    x = 63,428.48

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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.