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Finding the Fourth Proportional to 54,330.80, 81,496.20 and 47,040.80

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Solution

The fourth proportional to 54,330.80, 81,496.20 and 47,040.80 is: 70,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,330.80 : 81,496.20 = 47,040.80 : x
  2. Step 2: Convert to fraction form
    54,330.80/81,496.20 = 47,040.80/x
  3. Step 3: Cross multiply
    54,330.80x = 81,496.20 × 47,040.80
  4. Step 4: Simplify right side
    54,330.80x = 3,833,646,444.96
  5. Step 5: Solve for x
    x = 3,833,646,444.96/54,330.80
  6. Step 6: Final answer
    x = 70,561.20

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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.