Home / 91,636.38-126,455.58-55,813.32

Finding the Fourth Proportional to 91,636.38, 126,455.58 and 55,813.32

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Solution

The fourth proportional to 91,636.38, 126,455.58 and 55,813.32 is: 77,020.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,636.38 : 126,455.58 = 55,813.32 : x
  2. Step 2: Convert to fraction form
    91,636.38/126,455.58 = 55,813.32/x
  3. Step 3: Cross multiply
    91,636.38x = 126,455.58 × 55,813.32
  4. Step 4: Simplify right side
    91,636.38x = 7,057,905,752.33
  5. Step 5: Solve for x
    x = 7,057,905,752.33/91,636.38
  6. Step 6: Final answer
    x = 77,020.78

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1.5x scale

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.