Home / 81,631.80-122,330.88-46,498.86

Finding the Fourth Proportional to 81,631.80, 122,330.88 and 46,498.86

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Solution

The fourth proportional to 81,631.80, 122,330.88 and 46,498.86 is: 69,681.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,631.80 : 122,330.88 = 46,498.86 : x
  2. Step 2: Convert to fraction form
    81,631.80/122,330.88 = 46,498.86/x
  3. Step 3: Cross multiply
    81,631.80x = 122,330.88 × 46,498.86
  4. Step 4: Simplify right side
    81,631.80x = 5,688,246,462.80
  5. Step 5: Solve for x
    x = 5,688,246,462.80/81,631.80
  6. Step 6: Final answer
    x = 69,681.75

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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.