Home / 81,433.38-112,384.98-45,622.92

Finding the Fourth Proportional to 81,433.38, 112,384.98 and 45,622.92

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Solution

The fourth proportional to 81,433.38, 112,384.98 and 45,622.92 is: 62,963.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,433.38 : 112,384.98 = 45,622.92 : x
  2. Step 2: Convert to fraction form
    81,433.38/112,384.98 = 45,622.92/x
  3. Step 3: Cross multiply
    81,433.38x = 112,384.98 × 45,622.92
  4. Step 4: Simplify right side
    81,433.38x = 5,127,330,951.74
  5. Step 5: Solve for x
    x = 5,127,330,951.74/81,433.38
  6. Step 6: Final answer
    x = 62,963.50

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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.