Home / 42,749.04-64,124.04-13,166.64

Finding the Fourth Proportional to 42,749.04, 64,124.04 and 13,166.64

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Solution

The fourth proportional to 42,749.04, 64,124.04 and 13,166.64 is: 19,750.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,749.04 : 64,124.04 = 13,166.64 : x
  2. Step 2: Convert to fraction form
    42,749.04/64,124.04 = 13,166.64/x
  3. Step 3: Cross multiply
    42,749.04x = 64,124.04 × 13,166.64
  4. Step 4: Simplify right side
    42,749.04x = 844,298,150.03
  5. Step 5: Solve for x
    x = 844,298,150.03/42,749.04
  6. Step 6: Final answer
    x = 19,750.11

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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.