Home / 76,306.66-105,298.07-42,313.88

Finding the Fourth Proportional to 76,306.66, 105,298.07 and 42,313.88

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Solution

The fourth proportional to 76,306.66, 105,298.07 and 42,313.88 is: 58,390.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,306.66 : 105,298.07 = 42,313.88 : x
  2. Step 2: Convert to fraction form
    76,306.66/105,298.07 = 42,313.88/x
  3. Step 3: Cross multiply
    76,306.66x = 105,298.07 × 42,313.88
  4. Step 4: Simplify right side
    76,306.66x = 4,455,569,949.89
  5. Step 5: Solve for x
    x = 4,455,569,949.89/76,306.66
  6. Step 6: Final answer
    x = 58,390.32

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.