Home / 74,401.28-102,603.48-48,862.64

Finding the Fourth Proportional to 74,401.28, 102,603.48 and 48,862.64

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Solution

The fourth proportional to 74,401.28, 102,603.48 and 48,862.64 is: 67,384.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,401.28 : 102,603.48 = 48,862.64 : x
  2. Step 2: Convert to fraction form
    74,401.28/102,603.48 = 48,862.64/x
  3. Step 3: Cross multiply
    74,401.28x = 102,603.48 × 48,862.64
  4. Step 4: Simplify right side
    74,401.28x = 5,013,476,905.99
  5. Step 5: Solve for x
    x = 5,013,476,905.99/74,401.28
  6. Step 6: Final answer
    x = 67,384.28

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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.