Home / 72,654.48-100,328.76-45,844.56

Finding the Fourth Proportional to 72,654.48, 100,328.76 and 45,844.56

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Solution

The fourth proportional to 72,654.48, 100,328.76 and 45,844.56 is: 63,306.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,654.48 : 100,328.76 = 45,844.56 : x
  2. Step 2: Convert to fraction form
    72,654.48/100,328.76 = 45,844.56/x
  3. Step 3: Cross multiply
    72,654.48x = 100,328.76 × 45,844.56
  4. Step 4: Simplify right side
    72,654.48x = 4,599,527,857.55
  5. Step 5: Solve for x
    x = 4,599,527,857.55/72,654.48
  6. Step 6: Final answer
    x = 63,306.87

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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.