Home / 66,273.10-91,456.16-39,415.01

Finding the Fourth Proportional to 66,273.10, 91,456.16 and 39,415.01

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Solution

The fourth proportional to 66,273.10, 91,456.16 and 39,415.01 is: 54,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,273.10 : 91,456.16 = 39,415.01 : x
  2. Step 2: Convert to fraction form
    66,273.10/91,456.16 = 39,415.01/x
  3. Step 3: Cross multiply
    66,273.10x = 91,456.16 × 39,415.01
  4. Step 4: Simplify right side
    66,273.10x = 3,604,745,689.60
  5. Step 5: Solve for x
    x = 3,604,745,689.60/66,273.10
  6. Step 6: Final answer
    x = 54,392.29

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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.