Home / 79,945.28-119,980.58-55,772.39

Finding the Fourth Proportional to 79,945.28, 119,980.58 and 55,772.39

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Solution

The fourth proportional to 79,945.28, 119,980.58 and 55,772.39 is: 83,702.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,945.28 : 119,980.58 = 55,772.39 : x
  2. Step 2: Convert to fraction form
    79,945.28/119,980.58 = 55,772.39/x
  3. Step 3: Cross multiply
    79,945.28x = 119,980.58 × 55,772.39
  4. Step 4: Simplify right side
    79,945.28x = 6,691,602,877.66
  5. Step 5: Solve for x
    x = 6,691,602,877.66/79,945.28
  6. Step 6: Final answer
    x = 83,702.29

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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.