Home / 57,307.02-79,082.40-31,811.88

Finding the Fourth Proportional to 57,307.02, 79,082.40 and 31,811.88

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Solution

The fourth proportional to 57,307.02, 79,082.40 and 31,811.88 is: 43,899.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,307.02 : 79,082.40 = 31,811.88 : x
  2. Step 2: Convert to fraction form
    57,307.02/79,082.40 = 31,811.88/x
  3. Step 3: Cross multiply
    57,307.02x = 79,082.40 × 31,811.88
  4. Step 4: Simplify right side
    57,307.02x = 2,515,759,818.91
  5. Step 5: Solve for x
    x = 2,515,759,818.91/57,307.02
  6. Step 6: Final answer
    x = 43,899.68

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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.