Home / 76,306.25-105,302.43-42,313.86

Finding the Fourth Proportional to 76,306.25, 105,302.43 and 42,313.86

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Solution

The fourth proportional to 76,306.25, 105,302.43 and 42,313.86 is: 58,393.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,306.25 : 105,302.43 = 42,313.86 : x
  2. Step 2: Convert to fraction form
    76,306.25/105,302.43 = 42,313.86/x
  3. Step 3: Cross multiply
    76,306.25x = 105,302.43 × 42,313.86
  4. Step 4: Simplify right side
    76,306.25x = 4,455,752,280.68
  5. Step 5: Solve for x
    x = 4,455,752,280.68/76,306.25
  6. Step 6: Final answer
    x = 58,393.02

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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.