Home / 57,124.27-78,828.90-31,628.83

Finding the Fourth Proportional to 57,124.27, 78,828.90 and 31,628.83

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Solution

The fourth proportional to 57,124.27, 78,828.90 and 31,628.83 is: 43,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,124.27 : 78,828.90 = 31,628.83 : x
  2. Step 2: Convert to fraction form
    57,124.27/78,828.90 = 31,628.83/x
  3. Step 3: Cross multiply
    57,124.27x = 78,828.90 × 31,628.83
  4. Step 4: Simplify right side
    57,124.27x = 2,493,265,877.19
  5. Step 5: Solve for x
    x = 2,493,265,877.19/57,124.27
  6. Step 6: Final answer
    x = 43,646.35

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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.