Home / 76,506.24-105,678.36-58,818.72

Finding the Fourth Proportional to 76,506.24, 105,678.36 and 58,818.72

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Solution

The fourth proportional to 76,506.24, 105,678.36 and 58,818.72 is: 81,246.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,506.24 : 105,678.36 = 58,818.72 : x
  2. Step 2: Convert to fraction form
    76,506.24/105,678.36 = 58,818.72/x
  3. Step 3: Cross multiply
    76,506.24x = 105,678.36 × 58,818.72
  4. Step 4: Simplify right side
    76,506.24x = 6,215,865,866.90
  5. Step 5: Solve for x
    x = 6,215,865,866.90/76,506.24
  6. Step 6: Final answer
    x = 81,246.52

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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.