Home / 75,577.12-112,698.91-74,902.59

Finding the Fourth Proportional to 75,577.12, 112,698.91 and 74,902.59

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Solution

The fourth proportional to 75,577.12, 112,698.91 and 74,902.59 is: 111,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,577.12 : 112,698.91 = 74,902.59 : x
  2. Step 2: Convert to fraction form
    75,577.12/112,698.91 = 74,902.59/x
  3. Step 3: Cross multiply
    75,577.12x = 112,698.91 × 74,902.59
  4. Step 4: Simplify right side
    75,577.12x = 8,441,440,342.81
  5. Step 5: Solve for x
    x = 8,441,440,342.81/75,577.12
  6. Step 6: Final answer
    x = 111,693.07

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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.