Home / 62,186.09-85,830.65-39,520.66

Finding the Fourth Proportional to 62,186.09, 85,830.65 and 39,520.66

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Solution

The fourth proportional to 62,186.09, 85,830.65 and 39,520.66 is: 54,547.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,186.09 : 85,830.65 = 39,520.66 : x
  2. Step 2: Convert to fraction form
    62,186.09/85,830.65 = 39,520.66/x
  3. Step 3: Cross multiply
    62,186.09x = 85,830.65 × 39,520.66
  4. Step 4: Simplify right side
    62,186.09x = 3,392,083,820.45
  5. Step 5: Solve for x
    x = 3,392,083,820.45/62,186.09
  6. Step 6: Final answer
    x = 54,547.31

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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.