Home / 78,001.02-117,011.25-25,396.38

Finding the Fourth Proportional to 78,001.02, 117,011.25 and 25,396.38

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Solution

The fourth proportional to 78,001.02, 117,011.25 and 25,396.38 is: 38,097.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,001.02 : 117,011.25 = 25,396.38 : x
  2. Step 2: Convert to fraction form
    78,001.02/117,011.25 = 25,396.38/x
  3. Step 3: Cross multiply
    78,001.02x = 117,011.25 × 25,396.38
  4. Step 4: Simplify right side
    78,001.02x = 2,971,662,169.28
  5. Step 5: Solve for x
    x = 2,971,662,169.28/78,001.02
  6. Step 6: Final answer
    x = 38,097.73

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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.