Home / 63,018.28-86,997.36-42,707.64

Finding the Fourth Proportional to 63,018.28, 86,997.36 and 42,707.64

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Solution

The fourth proportional to 63,018.28, 86,997.36 and 42,707.64 is: 58,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,018.28 : 86,997.36 = 42,707.64 : x
  2. Step 2: Convert to fraction form
    63,018.28/86,997.36 = 42,707.64/x
  3. Step 3: Cross multiply
    63,018.28x = 86,997.36 × 42,707.64
  4. Step 4: Simplify right side
    63,018.28x = 3,715,451,931.83
  5. Step 5: Solve for x
    x = 3,715,451,931.83/63,018.28
  6. Step 6: Final answer
    x = 58,958.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.