Home / 81,311.41-112,214.45-45,501.10

Finding the Fourth Proportional to 81,311.41, 112,214.45 and 45,501.10

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Solution

The fourth proportional to 81,311.41, 112,214.45 and 45,501.10 is: 62,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,311.41 : 112,214.45 = 45,501.10 : x
  2. Step 2: Convert to fraction form
    81,311.41/112,214.45 = 45,501.10/x
  3. Step 3: Cross multiply
    81,311.41x = 112,214.45 × 45,501.10
  4. Step 4: Simplify right side
    81,311.41x = 5,105,880,910.90
  5. Step 5: Solve for x
    x = 5,105,880,910.90/81,311.41
  6. Step 6: Final answer
    x = 62,794.15

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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.