Home / 86,975.78-130,276.20-58,740.58

Finding the Fourth Proportional to 86,975.78, 130,276.20 and 58,740.58

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Solution

The fourth proportional to 86,975.78, 130,276.20 and 58,740.58 is: 87,984.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,975.78 : 130,276.20 = 58,740.58 : x
  2. Step 2: Convert to fraction form
    86,975.78/130,276.20 = 58,740.58/x
  3. Step 3: Cross multiply
    86,975.78x = 130,276.20 × 58,740.58
  4. Step 4: Simplify right side
    86,975.78x = 7,652,499,548.20
  5. Step 5: Solve for x
    x = 7,652,499,548.20/86,975.78
  6. Step 6: Final answer
    x = 87,984.26

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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.