Home / 48,429.20-72,643.80-40,237.20

Finding the Fourth Proportional to 48,429.20, 72,643.80 and 40,237.20

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Solution

The fourth proportional to 48,429.20, 72,643.80 and 40,237.20 is: 60,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,429.20 : 72,643.80 = 40,237.20 : x
  2. Step 2: Convert to fraction form
    48,429.20/72,643.80 = 40,237.20/x
  3. Step 3: Cross multiply
    48,429.20x = 72,643.80 × 40,237.20
  4. Step 4: Simplify right side
    48,429.20x = 2,922,983,109.36
  5. Step 5: Solve for x
    x = 2,922,983,109.36/48,429.20
  6. Step 6: Final answer
    x = 60,355.80

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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.