Home / 42,845.56-64,267.65-11,680.81

Finding the Fourth Proportional to 42,845.56, 64,267.65 and 11,680.81

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Solution

The fourth proportional to 42,845.56, 64,267.65 and 11,680.81 is: 17,521.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,845.56 : 64,267.65 = 11,680.81 : x
  2. Step 2: Convert to fraction form
    42,845.56/64,267.65 = 11,680.81/x
  3. Step 3: Cross multiply
    42,845.56x = 64,267.65 × 11,680.81
  4. Step 4: Simplify right side
    42,845.56x = 750,698,048.13
  5. Step 5: Solve for x
    x = 750,698,048.13/42,845.56
  6. Step 6: Final answer
    x = 17,521.02

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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.