Home / 57,840.40-86,760.60-47,998.90

Finding the Fourth Proportional to 57,840.40, 86,760.60 and 47,998.90

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Solution

The fourth proportional to 57,840.40, 86,760.60 and 47,998.90 is: 71,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,840.40 : 86,760.60 = 47,998.90 : x
  2. Step 2: Convert to fraction form
    57,840.40/86,760.60 = 47,998.90/x
  3. Step 3: Cross multiply
    57,840.40x = 86,760.60 × 47,998.90
  4. Step 4: Simplify right side
    57,840.40x = 4,164,413,363.34
  5. Step 5: Solve for x
    x = 4,164,413,363.34/57,840.40
  6. Step 6: Final answer
    x = 71,998.35

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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.