Home / 57,442.12-79,330.56-51,180.40

Finding the Fourth Proportional to 57,442.12, 79,330.56 and 51,180.40

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Solution

The fourth proportional to 57,442.12, 79,330.56 and 51,180.40 is: 70,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,442.12 : 79,330.56 = 51,180.40 : x
  2. Step 2: Convert to fraction form
    57,442.12/79,330.56 = 51,180.40/x
  3. Step 3: Cross multiply
    57,442.12x = 79,330.56 × 51,180.40
  4. Step 4: Simplify right side
    57,442.12x = 4,060,169,793.02
  5. Step 5: Solve for x
    x = 4,060,169,793.02/57,442.12
  6. Step 6: Final answer
    x = 70,682.80

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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.