Home / 56,730.40-85,095.60-54,008.80

Finding the Fourth Proportional to 56,730.40, 85,095.60 and 54,008.80

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Solution

The fourth proportional to 56,730.40, 85,095.60 and 54,008.80 is: 81,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,730.40 : 85,095.60 = 54,008.80 : x
  2. Step 2: Convert to fraction form
    56,730.40/85,095.60 = 54,008.80/x
  3. Step 3: Cross multiply
    56,730.40x = 85,095.60 × 54,008.80
  4. Step 4: Simplify right side
    56,730.40x = 4,595,911,241.28
  5. Step 5: Solve for x
    x = 4,595,911,241.28/56,730.40
  6. Step 6: Final answer
    x = 81,013.20

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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.