Home / 81,390.45-112,325.45-46,946.37

Finding the Fourth Proportional to 81,390.45, 112,325.45 and 46,946.37

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Solution

The fourth proportional to 81,390.45, 112,325.45 and 46,946.37 is: 64,789.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,390.45 : 112,325.45 = 46,946.37 : x
  2. Step 2: Convert to fraction form
    81,390.45/112,325.45 = 46,946.37/x
  3. Step 3: Cross multiply
    81,390.45x = 112,325.45 × 46,946.37
  4. Step 4: Simplify right side
    81,390.45x = 5,273,271,901.38
  5. Step 5: Solve for x
    x = 5,273,271,901.38/81,390.45
  6. Step 6: Final answer
    x = 64,789.81

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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.