Home / 58,122.72-79,685.28-57,072.96

Finding the Fourth Proportional to 58,122.72, 79,685.28 and 57,072.96

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Solution

The fourth proportional to 58,122.72, 79,685.28 and 57,072.96 is: 78,246.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,122.72 : 79,685.28 = 57,072.96 : x
  2. Step 2: Convert to fraction form
    58,122.72/79,685.28 = 57,072.96/x
  3. Step 3: Cross multiply
    58,122.72x = 79,685.28 × 57,072.96
  4. Step 4: Simplify right side
    58,122.72x = 4,547,874,798.03
  5. Step 5: Solve for x
    x = 4,547,874,798.03/58,122.72
  6. Step 6: Final answer
    x = 78,246.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.