Home / 81,362.18-112,266.85-45,553.70

Finding the Fourth Proportional to 81,362.18, 112,266.85 and 45,553.70

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Solution

The fourth proportional to 81,362.18, 112,266.85 and 45,553.70 is: 62,856.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,362.18 : 112,266.85 = 45,553.70 : x
  2. Step 2: Convert to fraction form
    81,362.18/112,266.85 = 45,553.70/x
  3. Step 3: Cross multiply
    81,362.18x = 112,266.85 × 45,553.70
  4. Step 4: Simplify right side
    81,362.18x = 5,114,169,729.63
  5. Step 5: Solve for x
    x = 5,114,169,729.63/81,362.18
  6. Step 6: Final answer
    x = 62,856.85

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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.