Home / 57,046.45-78,717.25-31,549.35

Finding the Fourth Proportional to 57,046.45, 78,717.25 and 31,549.35

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Solution

The fourth proportional to 57,046.45, 78,717.25 and 31,549.35 is: 43,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,046.45 : 78,717.25 = 31,549.35 : x
  2. Step 2: Convert to fraction form
    57,046.45/78,717.25 = 31,549.35/x
  3. Step 3: Cross multiply
    57,046.45x = 78,717.25 × 31,549.35
  4. Step 4: Simplify right side
    57,046.45x = 2,483,478,071.29
  5. Step 5: Solve for x
    x = 2,483,478,071.29/57,046.45
  6. Step 6: Final answer
    x = 43,534.32

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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.