Home / 66,210.13-91,377.59-39,352.37

Finding the Fourth Proportional to 66,210.13, 91,377.59 and 39,352.37

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Solution

The fourth proportional to 66,210.13, 91,377.59 and 39,352.37 is: 54,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,210.13 : 91,377.59 = 39,352.37 : x
  2. Step 2: Convert to fraction form
    66,210.13/91,377.59 = 39,352.37/x
  3. Step 3: Cross multiply
    66,210.13x = 91,377.59 × 39,352.37
  4. Step 4: Simplify right side
    66,210.13x = 3,595,924,534.63
  5. Step 5: Solve for x
    x = 3,595,924,534.63/66,210.13
  6. Step 6: Final answer
    x = 54,310.80

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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.