Home / 72,680.28-100,270.29-53,605.83

Finding the Fourth Proportional to 72,680.28, 100,270.29 and 53,605.83

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Solution

The fourth proportional to 72,680.28, 100,270.29 and 53,605.83 is: 73,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,680.28 : 100,270.29 = 53,605.83 : x
  2. Step 2: Convert to fraction form
    72,680.28/100,270.29 = 53,605.83/x
  3. Step 3: Cross multiply
    72,680.28x = 100,270.29 × 53,605.83
  4. Step 4: Simplify right side
    72,680.28x = 5,375,072,119.79
  5. Step 5: Solve for x
    x = 5,375,072,119.79/72,680.28
  6. Step 6: Final answer
    x = 73,955.03

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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.