Home / 70,309.19-105,340.79-58,538.61

Finding the Fourth Proportional to 70,309.19, 105,340.79 and 58,538.61

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Solution

The fourth proportional to 70,309.19, 105,340.79 and 58,538.61 is: 87,705.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,309.19 : 105,340.79 = 58,538.61 : x
  2. Step 2: Convert to fraction form
    70,309.19/105,340.79 = 58,538.61/x
  3. Step 3: Cross multiply
    70,309.19x = 105,340.79 × 58,538.61
  4. Step 4: Simplify right side
    70,309.19x = 6,166,503,569.25
  5. Step 5: Solve for x
    x = 6,166,503,569.25/70,309.19
  6. Step 6: Final answer
    x = 87,705.51

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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.