Home / 70,330.51-105,536.79-42,304.11

Finding the Fourth Proportional to 70,330.51, 105,536.79 and 42,304.11

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Solution

The fourth proportional to 70,330.51, 105,536.79 and 42,304.11 is: 63,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,330.51 : 105,536.79 = 42,304.11 : x
  2. Step 2: Convert to fraction form
    70,330.51/105,536.79 = 42,304.11/x
  3. Step 3: Cross multiply
    70,330.51x = 105,536.79 × 42,304.11
  4. Step 4: Simplify right side
    70,330.51x = 4,464,639,577.44
  5. Step 5: Solve for x
    x = 4,464,639,577.44/70,330.51
  6. Step 6: Final answer
    x = 63,480.83

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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.