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Finding the Fourth Proportional to 57,551.78, 79,423.63 and 31,711.41

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Solution

The fourth proportional to 57,551.78, 79,423.63 and 31,711.41 is: 43,762.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,551.78 : 79,423.63 = 31,711.41 : x
  2. Step 2: Convert to fraction form
    57,551.78/79,423.63 = 31,711.41/x
  3. Step 3: Cross multiply
    57,551.78x = 79,423.63 × 31,711.41
  4. Step 4: Simplify right side
    57,551.78x = 2,518,635,215.34
  5. Step 5: Solve for x
    x = 2,518,635,215.34/57,551.78
  6. Step 6: Final answer
    x = 43,762.94

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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.