Home / 55,266.98-76,264.61-31,068.56

Finding the Fourth Proportional to 55,266.98, 76,264.61 and 31,068.56

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Solution

The fourth proportional to 55,266.98, 76,264.61 and 31,068.56 is: 42,872.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,266.98 : 76,264.61 = 31,068.56 : x
  2. Step 2: Convert to fraction form
    55,266.98/76,264.61 = 31,068.56/x
  3. Step 3: Cross multiply
    55,266.98x = 76,264.61 × 31,068.56
  4. Step 4: Simplify right side
    55,266.98x = 2,369,431,646.98
  5. Step 5: Solve for x
    x = 2,369,431,646.98/55,266.98
  6. Step 6: Final answer
    x = 42,872.47

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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.