Home / 57,938.20-86,777.70-47,570.20

Finding the Fourth Proportional to 57,938.20, 86,777.70 and 47,570.20

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Solution

The fourth proportional to 57,938.20, 86,777.70 and 47,570.20 is: 71,248.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,938.20 : 86,777.70 = 47,570.20 : x
  2. Step 2: Convert to fraction form
    57,938.20/86,777.70 = 47,570.20/x
  3. Step 3: Cross multiply
    57,938.20x = 86,777.70 × 47,570.20
  4. Step 4: Simplify right side
    57,938.20x = 4,128,032,544.54
  5. Step 5: Solve for x
    x = 4,128,032,544.54/57,938.20
  6. Step 6: Final answer
    x = 71,248.89

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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.