Home / 52,688.20-72,708.96-28,814.28

Finding the Fourth Proportional to 52,688.20, 72,708.96 and 28,814.28

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Solution

The fourth proportional to 52,688.20, 72,708.96 and 28,814.28 is: 39,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,688.20 : 72,708.96 = 28,814.28 : x
  2. Step 2: Convert to fraction form
    52,688.20/72,708.96 = 28,814.28/x
  3. Step 3: Cross multiply
    52,688.20x = 72,708.96 × 28,814.28
  4. Step 4: Simplify right side
    52,688.20x = 2,095,056,331.95
  5. Step 5: Solve for x
    x = 2,095,056,331.95/52,688.20
  6. Step 6: Final answer
    x = 39,763.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.