Home / 58,716.14-80,916.40-57,636.51

Finding the Fourth Proportional to 58,716.14, 80,916.40 and 57,636.51

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Solution

The fourth proportional to 58,716.14, 80,916.40 and 57,636.51 is: 79,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,716.14 : 80,916.40 = 57,636.51 : x
  2. Step 2: Convert to fraction form
    58,716.14/80,916.40 = 57,636.51/x
  3. Step 3: Cross multiply
    58,716.14x = 80,916.40 × 57,636.51
  4. Step 4: Simplify right side
    58,716.14x = 4,663,738,666.37
  5. Step 5: Solve for x
    x = 4,663,738,666.37/58,716.14
  6. Step 6: Final answer
    x = 79,428.57

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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.