Home / 86,931.96-130,514.58-51,458.82

Finding the Fourth Proportional to 86,931.96, 130,514.58 and 51,458.82

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Solution

The fourth proportional to 86,931.96, 130,514.58 and 51,458.82 is: 77,257.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,931.96 : 130,514.58 = 51,458.82 : x
  2. Step 2: Convert to fraction form
    86,931.96/130,514.58 = 51,458.82/x
  3. Step 3: Cross multiply
    86,931.96x = 130,514.58 × 51,458.82
  4. Step 4: Simplify right side
    86,931.96x = 6,716,126,279.60
  5. Step 5: Solve for x
    x = 6,716,126,279.60/86,931.96
  6. Step 6: Final answer
    x = 77,257.27

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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.