Home / 77,066.28-114,837.48-69,217.20

Finding the Fourth Proportional to 77,066.28, 114,837.48 and 69,217.20

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Solution

The fourth proportional to 77,066.28, 114,837.48 and 69,217.20 is: 103,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,066.28 : 114,837.48 = 69,217.20 : x
  2. Step 2: Convert to fraction form
    77,066.28/114,837.48 = 69,217.20/x
  3. Step 3: Cross multiply
    77,066.28x = 114,837.48 × 69,217.20
  4. Step 4: Simplify right side
    77,066.28x = 7,948,728,820.66
  5. Step 5: Solve for x
    x = 7,948,728,820.66/77,066.28
  6. Step 6: Final answer
    x = 103,141.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.