Home / 76,263.13-105,235.71-42,270.89

Finding the Fourth Proportional to 76,263.13, 105,235.71 and 42,270.89

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Solution

The fourth proportional to 76,263.13, 105,235.71 and 42,270.89 is: 58,329.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,263.13 : 105,235.71 = 42,270.89 : x
  2. Step 2: Convert to fraction form
    76,263.13/105,235.71 = 42,270.89/x
  3. Step 3: Cross multiply
    76,263.13x = 105,235.71 × 42,270.89
  4. Step 4: Simplify right side
    76,263.13x = 4,448,407,121.48
  5. Step 5: Solve for x
    x = 4,448,407,121.48/76,263.13
  6. Step 6: Final answer
    x = 58,329.73

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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.