Home / 57,176.64-78,740.64-51,462.72

Finding the Fourth Proportional to 57,176.64, 78,740.64 and 51,462.72

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Solution

The fourth proportional to 57,176.64, 78,740.64 and 51,462.72 is: 70,871.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,176.64 : 78,740.64 = 51,462.72 : x
  2. Step 2: Convert to fraction form
    57,176.64/78,740.64 = 51,462.72/x
  3. Step 3: Cross multiply
    57,176.64x = 78,740.64 × 51,462.72
  4. Step 4: Simplify right side
    57,176.64x = 4,052,207,508.94
  5. Step 5: Solve for x
    x = 4,052,207,508.94/57,176.64
  6. Step 6: Final answer
    x = 70,871.73

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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.