Home / 42,710.52-64,204.10-39,628.90

Finding the Fourth Proportional to 42,710.52, 64,204.10 and 39,628.90

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Solution

The fourth proportional to 42,710.52, 64,204.10 and 39,628.90 is: 59,571.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,710.52 : 64,204.10 = 39,628.90 : x
  2. Step 2: Convert to fraction form
    42,710.52/64,204.10 = 39,628.90/x
  3. Step 3: Cross multiply
    42,710.52x = 64,204.10 × 39,628.90
  4. Step 4: Simplify right side
    42,710.52x = 2,544,337,858.49
  5. Step 5: Solve for x
    x = 2,544,337,858.49/42,710.52
  6. Step 6: Final answer
    x = 59,571.69

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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.