Home / 53,913.40-80,870.10-39,916.60

Finding the Fourth Proportional to 53,913.40, 80,870.10 and 39,916.60

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Solution

The fourth proportional to 53,913.40, 80,870.10 and 39,916.60 is: 59,874.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,913.40 : 80,870.10 = 39,916.60 : x
  2. Step 2: Convert to fraction form
    53,913.40/80,870.10 = 39,916.60/x
  3. Step 3: Cross multiply
    53,913.40x = 80,870.10 × 39,916.60
  4. Step 4: Simplify right side
    53,913.40x = 3,228,059,433.66
  5. Step 5: Solve for x
    x = 3,228,059,433.66/53,913.40
  6. Step 6: Final answer
    x = 59,874.90

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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.