Home / 42,749.22-64,124.13-13,167.30

Finding the Fourth Proportional to 42,749.22, 64,124.13 and 13,167.30

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Solution

The fourth proportional to 42,749.22, 64,124.13 and 13,167.30 is: 19,751.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,749.22 : 64,124.13 = 13,167.30 : x
  2. Step 2: Convert to fraction form
    42,749.22/64,124.13 = 13,167.30/x
  3. Step 3: Cross multiply
    42,749.22x = 64,124.13 × 13,167.30
  4. Step 4: Simplify right side
    42,749.22x = 844,341,656.95
  5. Step 5: Solve for x
    x = 844,341,656.95/42,749.22
  6. Step 6: Final answer
    x = 19,751.04

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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.