Home / 42,751.90-64,131.50-11,166.16

Finding the Fourth Proportional to 42,751.90, 64,131.50 and 11,166.16

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Solution

The fourth proportional to 42,751.90, 64,131.50 and 11,166.16 is: 16,750.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,751.90 : 64,131.50 = 11,166.16 : x
  2. Step 2: Convert to fraction form
    42,751.90/64,131.50 = 11,166.16/x
  3. Step 3: Cross multiply
    42,751.90x = 64,131.50 × 11,166.16
  4. Step 4: Simplify right side
    42,751.90x = 716,102,590.04
  5. Step 5: Solve for x
    x = 716,102,590.04/42,751.90
  6. Step 6: Final answer
    x = 16,750.19

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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.