Home / 81,358.10-112,273-45,548.14

Finding the Fourth Proportional to 81,358.10, 112,273 and 45,548.14

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Solution

The fourth proportional to 81,358.10, 112,273 and 45,548.14 is: 62,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,358.10 : 112,273 = 45,548.14 : x
  2. Step 2: Convert to fraction form
    81,358.10/112,273 = 45,548.14/x
  3. Step 3: Cross multiply
    81,358.10x = 112,273 × 45,548.14
  4. Step 4: Simplify right side
    81,358.10x = 5,113,826,322.22
  5. Step 5: Solve for x
    x = 5,113,826,322.22/81,358.10
  6. Step 6: Final answer
    x = 62,855.77

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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.