Home / 74,615.18-103,018.56-57,356.96

Finding the Fourth Proportional to 74,615.18, 103,018.56 and 57,356.96

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Solution

The fourth proportional to 74,615.18, 103,018.56 and 57,356.96 is: 79,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,615.18 : 103,018.56 = 57,356.96 : x
  2. Step 2: Convert to fraction form
    74,615.18/103,018.56 = 57,356.96/x
  3. Step 3: Cross multiply
    74,615.18x = 103,018.56 × 57,356.96
  4. Step 4: Simplify right side
    74,615.18x = 5,908,831,425.18
  5. Step 5: Solve for x
    x = 5,908,831,425.18/74,615.18
  6. Step 6: Final answer
    x = 79,190.74

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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.