Home / 57,914.19-86,876.55-20,470.32

Finding the Fourth Proportional to 57,914.19, 86,876.55 and 20,470.32

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Solution

The fourth proportional to 57,914.19, 86,876.55 and 20,470.32 is: 30,707.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,914.19 : 86,876.55 = 20,470.32 : x
  2. Step 2: Convert to fraction form
    57,914.19/86,876.55 = 20,470.32/x
  3. Step 3: Cross multiply
    57,914.19x = 86,876.55 × 20,470.32
  4. Step 4: Simplify right side
    57,914.19x = 1,778,390,779.00
  5. Step 5: Solve for x
    x = 1,778,390,779.00/57,914.19
  6. Step 6: Final answer
    x = 30,707.34

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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.