Home / 42,782.52-64,154.34-13,194.84

Finding the Fourth Proportional to 42,782.52, 64,154.34 and 13,194.84

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Solution

The fourth proportional to 42,782.52, 64,154.34 and 13,194.84 is: 19,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,782.52 : 64,154.34 = 13,194.84 : x
  2. Step 2: Convert to fraction form
    42,782.52/64,154.34 = 13,194.84/x
  3. Step 3: Cross multiply
    42,782.52x = 64,154.34 × 13,194.84
  4. Step 4: Simplify right side
    42,782.52x = 846,506,251.61
  5. Step 5: Solve for x
    x = 846,506,251.61/42,782.52
  6. Step 6: Final answer
    x = 19,786.26

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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.