Home / 57,008.08-78,670.57-31,857.58

Finding the Fourth Proportional to 57,008.08, 78,670.57 and 31,857.58

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Solution

The fourth proportional to 57,008.08, 78,670.57 and 31,857.58 is: 43,963.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.08 : 78,670.57 = 31,857.58 : x
  2. Step 2: Convert to fraction form
    57,008.08/78,670.57 = 31,857.58/x
  3. Step 3: Cross multiply
    57,008.08x = 78,670.57 × 31,857.58
  4. Step 4: Simplify right side
    57,008.08x = 2,506,253,977.42
  5. Step 5: Solve for x
    x = 2,506,253,977.42/57,008.08
  6. Step 6: Final answer
    x = 43,963.14

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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.