Home / 57,400.81-79,214.07-31,560.45

Finding the Fourth Proportional to 57,400.81, 79,214.07 and 31,560.45

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Solution

The fourth proportional to 57,400.81, 79,214.07 and 31,560.45 is: 43,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,400.81 : 79,214.07 = 31,560.45 : x
  2. Step 2: Convert to fraction form
    57,400.81/79,214.07 = 31,560.45/x
  3. Step 3: Cross multiply
    57,400.81x = 79,214.07 × 31,560.45
  4. Step 4: Simplify right side
    57,400.81x = 2,500,031,740.50
  5. Step 5: Solve for x
    x = 2,500,031,740.50/57,400.81
  6. Step 6: Final answer
    x = 43,553.95

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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.