Home / 42,987.76-64,485.09-16,346.49

Finding the Fourth Proportional to 42,987.76, 64,485.09 and 16,346.49

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Solution

The fourth proportional to 42,987.76, 64,485.09 and 16,346.49 is: 24,521.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,987.76 : 64,485.09 = 16,346.49 : x
  2. Step 2: Convert to fraction form
    42,987.76/64,485.09 = 16,346.49/x
  3. Step 3: Cross multiply
    42,987.76x = 64,485.09 × 16,346.49
  4. Step 4: Simplify right side
    42,987.76x = 1,054,104,940.13
  5. Step 5: Solve for x
    x = 1,054,104,940.13/42,987.76
  6. Step 6: Final answer
    x = 24,521.05

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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.