Home / 78,034.64-117,070.41-25,444.13

Finding the Fourth Proportional to 78,034.64, 117,070.41 and 25,444.13

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Solution

The fourth proportional to 78,034.64, 117,070.41 and 25,444.13 is: 38,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,034.64 : 117,070.41 = 25,444.13 : x
  2. Step 2: Convert to fraction form
    78,034.64/117,070.41 = 25,444.13/x
  3. Step 3: Cross multiply
    78,034.64x = 117,070.41 × 25,444.13
  4. Step 4: Simplify right side
    78,034.64x = 2,978,754,241.26
  5. Step 5: Solve for x
    x = 2,978,754,241.26/78,034.64
  6. Step 6: Final answer
    x = 38,172.20

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1.5x scale

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.