Home / 76,624.58-105,742.45-42,634.50

Finding the Fourth Proportional to 76,624.58, 105,742.45 and 42,634.50

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Solution

The fourth proportional to 76,624.58, 105,742.45 and 42,634.50 is: 58,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,624.58 : 105,742.45 = 42,634.50 : x
  2. Step 2: Convert to fraction form
    76,624.58/105,742.45 = 42,634.50/x
  3. Step 3: Cross multiply
    76,624.58x = 105,742.45 × 42,634.50
  4. Step 4: Simplify right side
    76,624.58x = 4,508,276,541.23
  5. Step 5: Solve for x
    x = 4,508,276,541.23/76,624.58
  6. Step 6: Final answer
    x = 58,835.90

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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.