Home / 52,212.96-78,275.16-17,143.20

Finding the Fourth Proportional to 52,212.96, 78,275.16 and 17,143.20

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Solution

The fourth proportional to 52,212.96, 78,275.16 and 17,143.20 is: 25,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,212.96 : 78,275.16 = 17,143.20 : x
  2. Step 2: Convert to fraction form
    52,212.96/78,275.16 = 17,143.20/x
  3. Step 3: Cross multiply
    52,212.96x = 78,275.16 × 17,143.20
  4. Step 4: Simplify right side
    52,212.96x = 1,341,886,722.91
  5. Step 5: Solve for x
    x = 1,341,886,722.91/52,212.96
  6. Step 6: Final answer
    x = 25,700.26

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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.