Home / 57,138.76-78,777.90-36,960.04

Finding the Fourth Proportional to 57,138.76, 78,777.90 and 36,960.04

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Solution

The fourth proportional to 57,138.76, 78,777.90 and 36,960.04 is: 50,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,138.76 : 78,777.90 = 36,960.04 : x
  2. Step 2: Convert to fraction form
    57,138.76/78,777.90 = 36,960.04/x
  3. Step 3: Cross multiply
    57,138.76x = 78,777.90 × 36,960.04
  4. Step 4: Simplify right side
    57,138.76x = 2,911,634,335.12
  5. Step 5: Solve for x
    x = 2,911,634,335.12/57,138.76
  6. Step 6: Final answer
    x = 50,957.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.