Home / 72,730.11-100,244.21-55,496.55

Finding the Fourth Proportional to 72,730.11, 100,244.21 and 55,496.55

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Solution

The fourth proportional to 72,730.11, 100,244.21 and 55,496.55 is: 76,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,730.11 : 100,244.21 = 55,496.55 : x
  2. Step 2: Convert to fraction form
    72,730.11/100,244.21 = 55,496.55/x
  3. Step 3: Cross multiply
    72,730.11x = 100,244.21 × 55,496.55
  4. Step 4: Simplify right side
    72,730.11x = 5,563,207,534.99
  5. Step 5: Solve for x
    x = 5,563,207,534.99/72,730.11
  6. Step 6: Final answer
    x = 76,491.12

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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.