Home / 76,133.12-105,103.50-47,461.52

Finding the Fourth Proportional to 76,133.12, 105,103.50 and 47,461.52

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Solution

The fourth proportional to 76,133.12, 105,103.50 and 47,461.52 is: 65,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,133.12 : 105,103.50 = 47,461.52 : x
  2. Step 2: Convert to fraction form
    76,133.12/105,103.50 = 47,461.52/x
  3. Step 3: Cross multiply
    76,133.12x = 105,103.50 × 47,461.52
  4. Step 4: Simplify right side
    76,133.12x = 4,988,371,867.32
  5. Step 5: Solve for x
    x = 4,988,371,867.32/76,133.12
  6. Step 6: Final answer
    x = 65,521.71

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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.