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Finding the Fourth Proportional to 57,320.69, 79,102.71 and 31,827.11

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Solution

The fourth proportional to 57,320.69, 79,102.71 and 31,827.11 is: 43,921.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,320.69 : 79,102.71 = 31,827.11 : x
  2. Step 2: Convert to fraction form
    57,320.69/79,102.71 = 31,827.11/x
  3. Step 3: Cross multiply
    57,320.69x = 79,102.71 × 31,827.11
  4. Step 4: Simplify right side
    57,320.69x = 2,517,610,256.95
  5. Step 5: Solve for x
    x = 2,517,610,256.95/57,320.69
  6. Step 6: Final answer
    x = 43,921.50

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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.