Home / 86,819.74-130,140.79-58,742.75

Finding the Fourth Proportional to 86,819.74, 130,140.79 and 58,742.75

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Solution

The fourth proportional to 86,819.74, 130,140.79 and 58,742.75 is: 88,054.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,819.74 : 130,140.79 = 58,742.75 : x
  2. Step 2: Convert to fraction form
    86,819.74/130,140.79 = 58,742.75/x
  3. Step 3: Cross multiply
    86,819.74x = 130,140.79 × 58,742.75
  4. Step 4: Simplify right side
    86,819.74x = 7,644,828,070.27
  5. Step 5: Solve for x
    x = 7,644,828,070.27/86,819.74
  6. Step 6: Final answer
    x = 88,054.03

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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.