Home / 42,748.43-64,129.54-13,166.26

Finding the Fourth Proportional to 42,748.43, 64,129.54 and 13,166.26

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Solution

The fourth proportional to 42,748.43, 64,129.54 and 13,166.26 is: 19,751.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748.43 : 64,129.54 = 13,166.26 : x
  2. Step 2: Convert to fraction form
    42,748.43/64,129.54 = 13,166.26/x
  3. Step 3: Cross multiply
    42,748.43x = 64,129.54 × 13,166.26
  4. Step 4: Simplify right side
    42,748.43x = 844,346,053.45
  5. Step 5: Solve for x
    x = 844,346,053.45/42,748.43
  6. Step 6: Final answer
    x = 19,751.51

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1.5x scale

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.