Home / 102,428.64-153,647.82-49,775.40

Finding the Fourth Proportional to 102,428.64, 153,647.82 and 49,775.40

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Solution

The fourth proportional to 102,428.64, 153,647.82 and 49,775.40 is: 74,665.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,428.64 : 153,647.82 = 49,775.40 : x
  2. Step 2: Convert to fraction form
    102,428.64/153,647.82 = 49,775.40/x
  3. Step 3: Cross multiply
    102,428.64x = 153,647.82 × 49,775.40
  4. Step 4: Simplify right side
    102,428.64x = 7,647,881,699.63
  5. Step 5: Solve for x
    x = 7,647,881,699.63/102,428.64
  6. Step 6: Final answer
    x = 74,665.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.