Home / 71,898.09-99,219.45-40,066.29

Finding the Fourth Proportional to 71,898.09, 99,219.45 and 40,066.29

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Solution

The fourth proportional to 71,898.09, 99,219.45 and 40,066.29 is: 55,291.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,898.09 : 99,219.45 = 40,066.29 : x
  2. Step 2: Convert to fraction form
    71,898.09/99,219.45 = 40,066.29/x
  3. Step 3: Cross multiply
    71,898.09x = 99,219.45 × 40,066.29
  4. Step 4: Simplify right side
    71,898.09x = 3,975,354,861.41
  5. Step 5: Solve for x
    x = 3,975,354,861.41/71,898.09
  6. Step 6: Final answer
    x = 55,291.53

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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.