Home / 39,756.80-59,634.78-10,174.40

Finding the Fourth Proportional to 39,756.80, 59,634.78 and 10,174.40

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Solution

The fourth proportional to 39,756.80, 59,634.78 and 10,174.40 is: 15,261.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,756.80 : 59,634.78 = 10,174.40 : x
  2. Step 2: Convert to fraction form
    39,756.80/59,634.78 = 10,174.40/x
  3. Step 3: Cross multiply
    39,756.80x = 59,634.78 × 10,174.40
  4. Step 4: Simplify right side
    39,756.80x = 606,748,105.63
  5. Step 5: Solve for x
    x = 606,748,105.63/39,756.80
  6. Step 6: Final answer
    x = 15,261.49

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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.