Home / 56,186.80-84,283.45-21,126.76

Finding the Fourth Proportional to 56,186.80, 84,283.45 and 21,126.76

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Solution

The fourth proportional to 56,186.80, 84,283.45 and 21,126.76 is: 31,691.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,186.80 : 84,283.45 = 21,126.76 : x
  2. Step 2: Convert to fraction form
    56,186.80/84,283.45 = 21,126.76/x
  3. Step 3: Cross multiply
    56,186.80x = 84,283.45 × 21,126.76
  4. Step 4: Simplify right side
    56,186.80x = 1,780,636,114.49
  5. Step 5: Solve for x
    x = 1,780,636,114.49/56,186.80
  6. Step 6: Final answer
    x = 31,691.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.