Home / 42,707.12-64,034.16-17,764.64

Finding the Fourth Proportional to 42,707.12, 64,034.16 and 17,764.64

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Solution

The fourth proportional to 42,707.12, 64,034.16 and 17,764.64 is: 26,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,707.12 : 64,034.16 = 17,764.64 : x
  2. Step 2: Convert to fraction form
    42,707.12/64,034.16 = 17,764.64/x
  3. Step 3: Cross multiply
    42,707.12x = 64,034.16 × 17,764.64
  4. Step 4: Simplify right side
    42,707.12x = 1,137,543,800.10
  5. Step 5: Solve for x
    x = 1,137,543,800.10/42,707.12
  6. Step 6: Final answer
    x = 26,635.93

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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.