Home / 55,916.64-83,883.60-18,972

Finding the Fourth Proportional to 55,916.64, 83,883.60 and 18,972

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Solution

The fourth proportional to 55,916.64, 83,883.60 and 18,972 is: 28,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,916.64 : 83,883.60 = 18,972 : x
  2. Step 2: Convert to fraction form
    55,916.64/83,883.60 = 18,972/x
  3. Step 3: Cross multiply
    55,916.64x = 83,883.60 × 18,972
  4. Step 4: Simplify right side
    55,916.64x = 1,591,439,659.20
  5. Step 5: Solve for x
    x = 1,591,439,659.20/55,916.64
  6. Step 6: Final answer
    x = 28,460.93

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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.