Home / 52,085.40-78,112-18,801.24

Finding the Fourth Proportional to 52,085.40, 78,112 and 18,801.24

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Solution

The fourth proportional to 52,085.40, 78,112 and 18,801.24 is: 28,196.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,085.40 : 78,112 = 18,801.24 : x
  2. Step 2: Convert to fraction form
    52,085.40/78,112 = 18,801.24/x
  3. Step 3: Cross multiply
    52,085.40x = 78,112 × 18,801.24
  4. Step 4: Simplify right side
    52,085.40x = 1,468,602,458.88
  5. Step 5: Solve for x
    x = 1,468,602,458.88/52,085.40
  6. Step 6: Final answer
    x = 28,196.05

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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.