Home / 55,946.60-83,972.64-20,442.32

Finding the Fourth Proportional to 55,946.60, 83,972.64 and 20,442.32

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Solution

The fourth proportional to 55,946.60, 83,972.64 and 20,442.32 is: 30,682.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,946.60 : 83,972.64 = 20,442.32 : x
  2. Step 2: Convert to fraction form
    55,946.60/83,972.64 = 20,442.32/x
  3. Step 3: Cross multiply
    55,946.60x = 83,972.64 × 20,442.32
  4. Step 4: Simplify right side
    55,946.60x = 1,716,595,578.12
  5. Step 5: Solve for x
    x = 1,716,595,578.12/55,946.60
  6. Step 6: Final answer
    x = 30,682.75

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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.