Home / 97,578.14-134,654.40-55,135.76

Finding the Fourth Proportional to 97,578.14, 134,654.40 and 55,135.76

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Solution

The fourth proportional to 97,578.14, 134,654.40 and 55,135.76 is: 76,085.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,578.14 : 134,654.40 = 55,135.76 : x
  2. Step 2: Convert to fraction form
    97,578.14/134,654.40 = 55,135.76/x
  3. Step 3: Cross multiply
    97,578.14x = 134,654.40 × 55,135.76
  4. Step 4: Simplify right side
    97,578.14x = 7,424,272,008.07
  5. Step 5: Solve for x
    x = 7,424,272,008.07/97,578.14
  6. Step 6: Final answer
    x = 76,085.41

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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.