Home / 42,764.81-64,157.75-14,685.28

Finding the Fourth Proportional to 42,764.81, 64,157.75 and 14,685.28

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Solution

The fourth proportional to 42,764.81, 64,157.75 and 14,685.28 is: 22,031.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,764.81 : 64,157.75 = 14,685.28 : x
  2. Step 2: Convert to fraction form
    42,764.81/64,157.75 = 14,685.28/x
  3. Step 3: Cross multiply
    42,764.81x = 64,157.75 × 14,685.28
  4. Step 4: Simplify right side
    42,764.81x = 942,174,399.24
  5. Step 5: Solve for x
    x = 942,174,399.24/42,764.81
  6. Step 6: Final answer
    x = 22,031.54

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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.