Home / 48,007.20-72,036.72-21,730.80

Finding the Fourth Proportional to 48,007.20, 72,036.72 and 21,730.80

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Solution

The fourth proportional to 48,007.20, 72,036.72 and 21,730.80 is: 32,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,007.20 : 72,036.72 = 21,730.80 : x
  2. Step 2: Convert to fraction form
    48,007.20/72,036.72 = 21,730.80/x
  3. Step 3: Cross multiply
    48,007.20x = 72,036.72 × 21,730.80
  4. Step 4: Simplify right side
    48,007.20x = 1,565,415,554.98
  5. Step 5: Solve for x
    x = 1,565,415,554.98/48,007.20
  6. Step 6: Final answer
    x = 32,607.93

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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.