Home / 94,308.81-130,147.03-51,288.71

Finding the Fourth Proportional to 94,308.81, 130,147.03 and 51,288.71

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Solution

The fourth proportional to 94,308.81, 130,147.03 and 51,288.71 is: 70,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,308.81 : 130,147.03 = 51,288.71 : x
  2. Step 2: Convert to fraction form
    94,308.81/130,147.03 = 51,288.71/x
  3. Step 3: Cross multiply
    94,308.81x = 130,147.03 × 51,288.71
  4. Step 4: Simplify right side
    94,308.81x = 6,675,073,279.03
  5. Step 5: Solve for x
    x = 6,675,073,279.03/94,308.81
  6. Step 6: Final answer
    x = 70,778.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.