Home / 57,268.79-79,031.36-31,427.16

Finding the Fourth Proportional to 57,268.79, 79,031.36 and 31,427.16

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Solution

The fourth proportional to 57,268.79, 79,031.36 and 31,427.16 is: 43,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,268.79 : 79,031.36 = 31,427.16 : x
  2. Step 2: Convert to fraction form
    57,268.79/79,031.36 = 31,427.16/x
  3. Step 3: Cross multiply
    57,268.79x = 79,031.36 × 31,427.16
  4. Step 4: Simplify right side
    57,268.79x = 2,483,731,195.74
  5. Step 5: Solve for x
    x = 2,483,731,195.74/57,268.79
  6. Step 6: Final answer
    x = 43,369.72

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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.