Home / 57,937.20-86,970.60-54,130.20

Finding the Fourth Proportional to 57,937.20, 86,970.60 and 54,130.20

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Solution

The fourth proportional to 57,937.20, 86,970.60 and 54,130.20 is: 81,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,937.20 : 86,970.60 = 54,130.20 : x
  2. Step 2: Convert to fraction form
    57,937.20/86,970.60 = 54,130.20/x
  3. Step 3: Cross multiply
    57,937.20x = 86,970.60 × 54,130.20
  4. Step 4: Simplify right side
    57,937.20x = 4,707,735,972.12
  5. Step 5: Solve for x
    x = 4,707,735,972.12/57,937.20
  6. Step 6: Final answer
    x = 81,255.84

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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.