Home / 48,639.04-72,905.10-19,051.36

Finding the Fourth Proportional to 48,639.04, 72,905.10 and 19,051.36

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Solution

The fourth proportional to 48,639.04, 72,905.10 and 19,051.36 is: 28,556.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,639.04 : 72,905.10 = 19,051.36 : x
  2. Step 2: Convert to fraction form
    48,639.04/72,905.10 = 19,051.36/x
  3. Step 3: Cross multiply
    48,639.04x = 72,905.10 × 19,051.36
  4. Step 4: Simplify right side
    48,639.04x = 1,388,941,305.94
  5. Step 5: Solve for x
    x = 1,388,941,305.94/48,639.04
  6. Step 6: Final answer
    x = 28,556.10

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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.