Home / 55,209.63-76,186.65-31,333.05

Finding the Fourth Proportional to 55,209.63, 76,186.65 and 31,333.05

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Solution

The fourth proportional to 55,209.63, 76,186.65 and 31,333.05 is: 43,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,209.63 : 76,186.65 = 31,333.05 : x
  2. Step 2: Convert to fraction form
    55,209.63/76,186.65 = 31,333.05/x
  3. Step 3: Cross multiply
    55,209.63x = 76,186.65 × 31,333.05
  4. Step 4: Simplify right side
    55,209.63x = 2,387,160,113.78
  5. Step 5: Solve for x
    x = 2,387,160,113.78/55,209.63
  6. Step 6: Final answer
    x = 43,238.11

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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.