Home / 83,697.75-115,502.90-45,972

Finding the Fourth Proportional to 83,697.75, 115,502.90 and 45,972

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Solution

The fourth proportional to 83,697.75, 115,502.90 and 45,972 is: 63,441.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,697.75 : 115,502.90 = 45,972 : x
  2. Step 2: Convert to fraction form
    83,697.75/115,502.90 = 45,972/x
  3. Step 3: Cross multiply
    83,697.75x = 115,502.90 × 45,972
  4. Step 4: Simplify right side
    83,697.75x = 5,309,899,088.94
  5. Step 5: Solve for x
    x = 5,309,899,088.94/83,697.75
  6. Step 6: Final answer
    x = 63,441.36

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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.