Home / 76,346.86-105,283.64-58,243.90

Finding the Fourth Proportional to 76,346.86, 105,283.64 and 58,243.90

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Solution

The fourth proportional to 76,346.86, 105,283.64 and 58,243.90 is: 80,319.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,346.86 : 105,283.64 = 58,243.90 : x
  2. Step 2: Convert to fraction form
    76,346.86/105,283.64 = 58,243.90/x
  3. Step 3: Cross multiply
    76,346.86x = 105,283.64 × 58,243.90
  4. Step 4: Simplify right side
    76,346.86x = 6,132,129,799.80
  5. Step 5: Solve for x
    x = 6,132,129,799.80/76,346.86
  6. Step 6: Final answer
    x = 80,319.35

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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.