Home / 75,681.78-113,522.69-31,259.70

Finding the Fourth Proportional to 75,681.78, 113,522.69 and 31,259.70

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Solution

The fourth proportional to 75,681.78, 113,522.69 and 31,259.70 is: 46,889.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,681.78 : 113,522.69 = 31,259.70 : x
  2. Step 2: Convert to fraction form
    75,681.78/113,522.69 = 31,259.70/x
  3. Step 3: Cross multiply
    75,681.78x = 113,522.69 × 31,259.70
  4. Step 4: Simplify right side
    75,681.78x = 3,548,685,076.29
  5. Step 5: Solve for x
    x = 3,548,685,076.29/75,681.78
  6. Step 6: Final answer
    x = 46,889.56

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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.