Home / 76,365.65-105,385.17-42,374.27

Finding the Fourth Proportional to 76,365.65, 105,385.17 and 42,374.27

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Solution

The fourth proportional to 76,365.65, 105,385.17 and 42,374.27 is: 58,476.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,365.65 : 105,385.17 = 42,374.27 : x
  2. Step 2: Convert to fraction form
    76,365.65/105,385.17 = 42,374.27/x
  3. Step 3: Cross multiply
    76,365.65x = 105,385.17 × 42,374.27
  4. Step 4: Simplify right side
    76,365.65x = 4,465,619,120.65
  5. Step 5: Solve for x
    x = 4,465,619,120.65/76,365.65
  6. Step 6: Final answer
    x = 58,476.81

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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.