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Finding the Fourth Proportional to 55,808.60, 83,512.42 and 40,980.74

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Solution

The fourth proportional to 55,808.60, 83,512.42 and 40,980.74 is: 61,323.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,808.60 : 83,512.42 = 40,980.74 : x
  2. Step 2: Convert to fraction form
    55,808.60/83,512.42 = 40,980.74/x
  3. Step 3: Cross multiply
    55,808.60x = 83,512.42 × 40,980.74
  4. Step 4: Simplify right side
    55,808.60x = 3,422,400,250.78
  5. Step 5: Solve for x
    x = 3,422,400,250.78/55,808.60
  6. Step 6: Final answer
    x = 61,323.89

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1.5x scale

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.