Home / 57,242.08-78,986.55-31,748.14

Finding the Fourth Proportional to 57,242.08, 78,986.55 and 31,748.14

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Solution

The fourth proportional to 57,242.08, 78,986.55 and 31,748.14 is: 43,808.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,242.08 : 78,986.55 = 31,748.14 : x
  2. Step 2: Convert to fraction form
    57,242.08/78,986.55 = 31,748.14/x
  3. Step 3: Cross multiply
    57,242.08x = 78,986.55 × 31,748.14
  4. Step 4: Simplify right side
    57,242.08x = 2,507,676,047.52
  5. Step 5: Solve for x
    x = 2,507,676,047.52/57,242.08
  6. Step 6: Final answer
    x = 43,808.26

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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.