Home / 76,703.58-114,948.90-57,968.28

Finding the Fourth Proportional to 76,703.58, 114,948.90 and 57,968.28

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Solution

The fourth proportional to 76,703.58, 114,948.90 and 57,968.28 is: 86,871.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,703.58 : 114,948.90 = 57,968.28 : x
  2. Step 2: Convert to fraction form
    76,703.58/114,948.90 = 57,968.28/x
  3. Step 3: Cross multiply
    76,703.58x = 114,948.90 × 57,968.28
  4. Step 4: Simplify right side
    76,703.58x = 6,663,390,020.89
  5. Step 5: Solve for x
    x = 6,663,390,020.89/76,703.58
  6. Step 6: Final answer
    x = 86,871.96

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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.