Home / 64,705.31-97,074.07-51,428.39

Finding the Fourth Proportional to 64,705.31, 97,074.07 and 51,428.39

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Solution

The fourth proportional to 64,705.31, 97,074.07 and 51,428.39 is: 77,155.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,705.31 : 97,074.07 = 51,428.39 : x
  2. Step 2: Convert to fraction form
    64,705.31/97,074.07 = 51,428.39/x
  3. Step 3: Cross multiply
    64,705.31x = 97,074.07 × 51,428.39
  4. Step 4: Simplify right side
    64,705.31x = 4,992,363,244.96
  5. Step 5: Solve for x
    x = 4,992,363,244.96/64,705.31
  6. Step 6: Final answer
    x = 77,155.39

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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.