Home / 57,130.02-78,838.44-31,635.88

Finding the Fourth Proportional to 57,130.02, 78,838.44 and 31,635.88

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Solution

The fourth proportional to 57,130.02, 78,838.44 and 31,635.88 is: 43,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,130.02 : 78,838.44 = 31,635.88 : x
  2. Step 2: Convert to fraction form
    57,130.02/78,838.44 = 31,635.88/x
  3. Step 3: Cross multiply
    57,130.02x = 78,838.44 × 31,635.88
  4. Step 4: Simplify right side
    57,130.02x = 2,494,123,427.23
  5. Step 5: Solve for x
    x = 2,494,123,427.23/57,130.02
  6. Step 6: Final answer
    x = 43,656.97

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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.