Home / 56,188.08-84,285.35-21,128.04

Finding the Fourth Proportional to 56,188.08, 84,285.35 and 21,128.04

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Solution

The fourth proportional to 56,188.08, 84,285.35 and 21,128.04 is: 31,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,188.08 : 84,285.35 = 21,128.04 : x
  2. Step 2: Convert to fraction form
    56,188.08/84,285.35 = 21,128.04/x
  3. Step 3: Cross multiply
    56,188.08x = 84,285.35 × 21,128.04
  4. Step 4: Simplify right side
    56,188.08x = 1,780,784,088.32
  5. Step 5: Solve for x
    x = 1,780,784,088.32/56,188.08
  6. Step 6: Final answer
    x = 31,693.27

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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.