Home / 51,621.12-71,277.28-39,665.60

Finding the Fourth Proportional to 51,621.12, 71,277.28 and 39,665.60

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Solution

The fourth proportional to 51,621.12, 71,277.28 and 39,665.60 is: 54,769.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,621.12 : 71,277.28 = 39,665.60 : x
  2. Step 2: Convert to fraction form
    51,621.12/71,277.28 = 39,665.60/x
  3. Step 3: Cross multiply
    51,621.12x = 71,277.28 × 39,665.60
  4. Step 4: Simplify right side
    51,621.12x = 2,827,256,077.57
  5. Step 5: Solve for x
    x = 2,827,256,077.57/51,621.12
  6. Step 6: Final answer
    x = 54,769.37

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1.5x scale

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.