Home / 78,035.09-117,071.27-25,444.63

Finding the Fourth Proportional to 78,035.09, 117,071.27 and 25,444.63

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Solution

The fourth proportional to 78,035.09, 117,071.27 and 25,444.63 is: 38,173.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035.09 : 117,071.27 = 25,444.63 : x
  2. Step 2: Convert to fraction form
    78,035.09/117,071.27 = 25,444.63/x
  3. Step 3: Cross multiply
    78,035.09x = 117,071.27 × 25,444.63
  4. Step 4: Simplify right side
    78,035.09x = 2,978,834,436.20
  5. Step 5: Solve for x
    x = 2,978,834,436.20/78,035.09
  6. Step 6: Final answer
    x = 38,173.01

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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.