Home / 77,014.12-115,328.40-48,848.80

Finding the Fourth Proportional to 77,014.12, 115,328.40 and 48,848.80

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Solution

The fourth proportional to 77,014.12, 115,328.40 and 48,848.80 is: 73,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,014.12 : 115,328.40 = 48,848.80 : x
  2. Step 2: Convert to fraction form
    77,014.12/115,328.40 = 48,848.80/x
  3. Step 3: Cross multiply
    77,014.12x = 115,328.40 × 48,848.80
  4. Step 4: Simplify right side
    77,014.12x = 5,633,653,945.92
  5. Step 5: Solve for x
    x = 5,633,653,945.92/77,014.12
  6. Step 6: Final answer
    x = 73,150.92

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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.