Home / 86,420.16-119,269.44-54,587.52

Finding the Fourth Proportional to 86,420.16, 119,269.44 and 54,587.52

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Solution

The fourth proportional to 86,420.16, 119,269.44 and 54,587.52 is: 75,336.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,420.16 : 119,269.44 = 54,587.52 : x
  2. Step 2: Convert to fraction form
    86,420.16/119,269.44 = 54,587.52/x
  3. Step 3: Cross multiply
    86,420.16x = 119,269.44 × 54,587.52
  4. Step 4: Simplify right side
    86,420.16x = 6,510,622,941.39
  5. Step 5: Solve for x
    x = 6,510,622,941.39/86,420.16
  6. Step 6: Final answer
    x = 75,336.85

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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.