Home / 57,330.02-79,116.47-31,488.40

Finding the Fourth Proportional to 57,330.02, 79,116.47 and 31,488.40

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Solution

The fourth proportional to 57,330.02, 79,116.47 and 31,488.40 is: 43,454.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,330.02 : 79,116.47 = 31,488.40 : x
  2. Step 2: Convert to fraction form
    57,330.02/79,116.47 = 31,488.40/x
  3. Step 3: Cross multiply
    57,330.02x = 79,116.47 × 31,488.40
  4. Step 4: Simplify right side
    57,330.02x = 2,491,250,757.01
  5. Step 5: Solve for x
    x = 2,491,250,757.01/57,330.02
  6. Step 6: Final answer
    x = 43,454.56

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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.