Home / 86,699.73-130,023.67-45,124.05

Finding the Fourth Proportional to 86,699.73, 130,023.67 and 45,124.05

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Solution

The fourth proportional to 86,699.73, 130,023.67 and 45,124.05 is: 67,672.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,699.73 : 130,023.67 = 45,124.05 : x
  2. Step 2: Convert to fraction form
    86,699.73/130,023.67 = 45,124.05/x
  3. Step 3: Cross multiply
    86,699.73x = 130,023.67 × 45,124.05
  4. Step 4: Simplify right side
    86,699.73x = 5,867,194,586.26
  5. Step 5: Solve for x
    x = 5,867,194,586.26/86,699.73
  6. Step 6: Final answer
    x = 67,672.58

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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.