Home / 42,752.81-64,135.60-13,168.17

Finding the Fourth Proportional to 42,752.81, 64,135.60 and 13,168.17

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Solution

The fourth proportional to 42,752.81, 64,135.60 and 13,168.17 is: 19,754.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,752.81 : 64,135.60 = 13,168.17 : x
  2. Step 2: Convert to fraction form
    42,752.81/64,135.60 = 13,168.17/x
  3. Step 3: Cross multiply
    42,752.81x = 64,135.60 × 13,168.17
  4. Step 4: Simplify right side
    42,752.81x = 844,548,450.93
  5. Step 5: Solve for x
    x = 844,548,450.93/42,752.81
  6. Step 6: Final answer
    x = 19,754.22

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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.