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Finding the Fourth Proportional to 53,355.65, 80,038.13 and 21,768.08

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Solution

The fourth proportional to 53,355.65, 80,038.13 and 21,768.08 is: 32,654.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,355.65 : 80,038.13 = 21,768.08 : x
  2. Step 2: Convert to fraction form
    53,355.65/80,038.13 = 21,768.08/x
  3. Step 3: Cross multiply
    53,355.65x = 80,038.13 × 21,768.08
  4. Step 4: Simplify right side
    53,355.65x = 1,742,275,907.86
  5. Step 5: Solve for x
    x = 1,742,275,907.86/53,355.65
  6. Step 6: Final answer
    x = 32,654.01

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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.