Home / 55,343.60-76,283.12-39,216.32

Finding the Fourth Proportional to 55,343.60, 76,283.12 and 39,216.32

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Solution

The fourth proportional to 55,343.60, 76,283.12 and 39,216.32 is: 54,054.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,343.60 : 76,283.12 = 39,216.32 : x
  2. Step 2: Convert to fraction form
    55,343.60/76,283.12 = 39,216.32/x
  3. Step 3: Cross multiply
    55,343.60x = 76,283.12 × 39,216.32
  4. Step 4: Simplify right side
    55,343.60x = 2,991,543,244.52
  5. Step 5: Solve for x
    x = 2,991,543,244.52/55,343.60
  6. Step 6: Final answer
    x = 54,054.01

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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.