Home / 76,338.11-105,347.23-42,348.83

Finding the Fourth Proportional to 76,338.11, 105,347.23 and 42,348.83

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Solution

The fourth proportional to 76,338.11, 105,347.23 and 42,348.83 is: 58,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,338.11 : 105,347.23 = 42,348.83 : x
  2. Step 2: Convert to fraction form
    76,338.11/105,347.23 = 42,348.83/x
  3. Step 3: Cross multiply
    76,338.11x = 105,347.23 × 42,348.83
  4. Step 4: Simplify right side
    76,338.11x = 4,461,331,301.63
  5. Step 5: Solve for x
    x = 4,461,331,301.63/76,338.11
  6. Step 6: Final answer
    x = 58,441.73

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1.5x scale

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.