Home / 42,750.37-64,132.45-13,168.20

Finding the Fourth Proportional to 42,750.37, 64,132.45 and 13,168.20

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Solution

The fourth proportional to 42,750.37, 64,132.45 and 13,168.20 is: 19,754.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,750.37 : 64,132.45 = 13,168.20 : x
  2. Step 2: Convert to fraction form
    42,750.37/64,132.45 = 13,168.20/x
  3. Step 3: Cross multiply
    42,750.37x = 64,132.45 × 13,168.20
  4. Step 4: Simplify right side
    42,750.37x = 844,508,574.51
  5. Step 5: Solve for x
    x = 844,508,574.51/42,750.37
  6. Step 6: Final answer
    x = 19,754.42

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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.