Home / 81,313.28-112,217.03-45,502.98

Finding the Fourth Proportional to 81,313.28, 112,217.03 and 45,502.98

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Solution

The fourth proportional to 81,313.28, 112,217.03 and 45,502.98 is: 62,796.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,313.28 : 112,217.03 = 45,502.98 : x
  2. Step 2: Convert to fraction form
    81,313.28/112,217.03 = 45,502.98/x
  3. Step 3: Cross multiply
    81,313.28x = 112,217.03 × 45,502.98
  4. Step 4: Simplify right side
    81,313.28x = 5,106,209,271.75
  5. Step 5: Solve for x
    x = 5,106,209,271.75/81,313.28
  6. Step 6: Final answer
    x = 62,796.74

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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.