Home / 86,708.20-119,656.60-60,903

Finding the Fourth Proportional to 86,708.20, 119,656.60 and 60,903

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Solution

The fourth proportional to 86,708.20, 119,656.60 and 60,903 is: 84,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,708.20 : 119,656.60 = 60,903 : x
  2. Step 2: Convert to fraction form
    86,708.20/119,656.60 = 60,903/x
  3. Step 3: Cross multiply
    86,708.20x = 119,656.60 × 60,903
  4. Step 4: Simplify right side
    86,708.20x = 7,287,445,909.80
  5. Step 5: Solve for x
    x = 7,287,445,909.80/86,708.20
  6. Step 6: Final answer
    x = 84,045.64

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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.