Home / 78,051.86-117,092.40-25,476.38

Finding the Fourth Proportional to 78,051.86, 117,092.40 and 25,476.38

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Solution

The fourth proportional to 78,051.86, 117,092.40 and 25,476.38 is: 38,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,051.86 : 117,092.40 = 25,476.38 : x
  2. Step 2: Convert to fraction form
    78,051.86/117,092.40 = 25,476.38/x
  3. Step 3: Cross multiply
    78,051.86x = 117,092.40 × 25,476.38
  4. Step 4: Simplify right side
    78,051.86x = 2,983,090,477.51
  5. Step 5: Solve for x
    x = 2,983,090,477.51/78,051.86
  6. Step 6: Final answer
    x = 38,219.34

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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.