Home / 56,729.40-85,094.10-54,007.80

Finding the Fourth Proportional to 56,729.40, 85,094.10 and 54,007.80

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Solution

The fourth proportional to 56,729.40, 85,094.10 and 54,007.80 is: 81,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,729.40 : 85,094.10 = 54,007.80 : x
  2. Step 2: Convert to fraction form
    56,729.40/85,094.10 = 54,007.80/x
  3. Step 3: Cross multiply
    56,729.40x = 85,094.10 × 54,007.80
  4. Step 4: Simplify right side
    56,729.40x = 4,595,745,133.98
  5. Step 5: Solve for x
    x = 4,595,745,133.98/56,729.40
  6. Step 6: Final answer
    x = 81,011.70

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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.