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Finding the Fourth Proportional to 76,325.65, 105,334.50 and 42,344.94

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Solution

The fourth proportional to 76,325.65, 105,334.50 and 42,344.94 is: 58,438.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,325.65 : 105,334.50 = 42,344.94 : x
  2. Step 2: Convert to fraction form
    76,325.65/105,334.50 = 42,344.94/x
  3. Step 3: Cross multiply
    76,325.65x = 105,334.50 × 42,344.94
  4. Step 4: Simplify right side
    76,325.65x = 4,460,382,555.76
  5. Step 5: Solve for x
    x = 4,460,382,555.76/76,325.65
  6. Step 6: Final answer
    x = 58,438.84

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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.