Home / 58,719.14-80,920.55-57,639.51

Finding the Fourth Proportional to 58,719.14, 80,920.55 and 57,639.51

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Solution

The fourth proportional to 58,719.14, 80,920.55 and 57,639.51 is: 79,432.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,719.14 : 80,920.55 = 57,639.51 : x
  2. Step 2: Convert to fraction form
    58,719.14/80,920.55 = 57,639.51/x
  3. Step 3: Cross multiply
    58,719.14x = 80,920.55 × 57,639.51
  4. Step 4: Simplify right side
    58,719.14x = 4,664,220,562.73
  5. Step 5: Solve for x
    x = 4,664,220,562.73/58,719.14
  6. Step 6: Final answer
    x = 79,432.72

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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.