Home / 105,576.36-145,690.20-57,829.92

Finding the Fourth Proportional to 105,576.36, 145,690.20 and 57,829.92

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Solution

The fourth proportional to 105,576.36, 145,690.20 and 57,829.92 is: 79,802.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,576.36 : 145,690.20 = 57,829.92 : x
  2. Step 2: Convert to fraction form
    105,576.36/145,690.20 = 57,829.92/x
  3. Step 3: Cross multiply
    105,576.36x = 145,690.20 × 57,829.92
  4. Step 4: Simplify right side
    105,576.36x = 8,425,252,610.78
  5. Step 5: Solve for x
    x = 8,425,252,610.78/105,576.36
  6. Step 6: Final answer
    x = 79,802.45

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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.