Home / 76,306.14-105,299.55-42,316.02

Finding the Fourth Proportional to 76,306.14, 105,299.55 and 42,316.02

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Solution

The fourth proportional to 76,306.14, 105,299.55 and 42,316.02 is: 58,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,306.14 : 105,299.55 = 42,316.02 : x
  2. Step 2: Convert to fraction form
    76,306.14/105,299.55 = 42,316.02/x
  3. Step 3: Cross multiply
    76,306.14x = 105,299.55 × 42,316.02
  4. Step 4: Simplify right side
    76,306.14x = 4,455,857,863.79
  5. Step 5: Solve for x
    x = 4,455,857,863.79/76,306.14
  6. Step 6: Final answer
    x = 58,394.49

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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.