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Finding the Fourth Proportional to 45,303.84, 67,955.76 and 15,729.12

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Solution

The fourth proportional to 45,303.84, 67,955.76 and 15,729.12 is: 23,593.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,303.84 : 67,955.76 = 15,729.12 : x
  2. Step 2: Convert to fraction form
    45,303.84/67,955.76 = 15,729.12/x
  3. Step 3: Cross multiply
    45,303.84x = 67,955.76 × 15,729.12
  4. Step 4: Simplify right side
    45,303.84x = 1,068,884,303.73
  5. Step 5: Solve for x
    x = 1,068,884,303.73/45,303.84
  6. Step 6: Final answer
    x = 23,593.68

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Similar ratio
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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.