Home / 51,569.57-71,159.64-31,419.14

Finding the Fourth Proportional to 51,569.57, 71,159.64 and 31,419.14

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Solution

The fourth proportional to 51,569.57, 71,159.64 and 31,419.14 is: 43,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,569.57 : 71,159.64 = 31,419.14 : x
  2. Step 2: Convert to fraction form
    51,569.57/71,159.64 = 31,419.14/x
  3. Step 3: Cross multiply
    51,569.57x = 71,159.64 × 31,419.14
  4. Step 4: Simplify right side
    51,569.57x = 2,235,774,691.51
  5. Step 5: Solve for x
    x = 2,235,774,691.51/51,569.57
  6. Step 6: Final answer
    x = 43,354.53

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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.