Home / 66,220.88-91,386.76-36,006.16

Finding the Fourth Proportional to 66,220.88, 91,386.76 and 36,006.16

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Solution

The fourth proportional to 66,220.88, 91,386.76 and 36,006.16 is: 49,689.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,220.88 : 91,386.76 = 36,006.16 : x
  2. Step 2: Convert to fraction form
    66,220.88/91,386.76 = 36,006.16/x
  3. Step 3: Cross multiply
    66,220.88x = 91,386.76 × 36,006.16
  4. Step 4: Simplify right side
    66,220.88x = 3,290,486,302.44
  5. Step 5: Solve for x
    x = 3,290,486,302.44/66,220.88
  6. Step 6: Final answer
    x = 49,689.56

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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.