Home / 55,640.33-83,460.60-13,520.45

Finding the Fourth Proportional to 55,640.33, 83,460.60 and 13,520.45

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Solution

The fourth proportional to 55,640.33, 83,460.60 and 13,520.45 is: 20,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,640.33 : 83,460.60 = 13,520.45 : x
  2. Step 2: Convert to fraction form
    55,640.33/83,460.60 = 13,520.45/x
  3. Step 3: Cross multiply
    55,640.33x = 83,460.60 × 13,520.45
  4. Step 4: Simplify right side
    55,640.33x = 1,128,424,869.27
  5. Step 5: Solve for x
    x = 1,128,424,869.27/55,640.33
  6. Step 6: Final answer
    x = 20,280.70

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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.