Home / 66,200.10-91,347.12-39,332.81

Finding the Fourth Proportional to 66,200.10, 91,347.12 and 39,332.81

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Solution

The fourth proportional to 66,200.10, 91,347.12 and 39,332.81 is: 54,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,200.10 : 91,347.12 = 39,332.81 : x
  2. Step 2: Convert to fraction form
    66,200.10/91,347.12 = 39,332.81/x
  3. Step 3: Cross multiply
    66,200.10x = 91,347.12 × 39,332.81
  4. Step 4: Simplify right side
    66,200.10x = 3,592,938,458.27
  5. Step 5: Solve for x
    x = 3,592,938,458.27/66,200.10
  6. Step 6: Final answer
    x = 54,273.91

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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.