Home / 45,813.60-63,211.71-30,700.74

Finding the Fourth Proportional to 45,813.60, 63,211.71 and 30,700.74

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Solution

The fourth proportional to 45,813.60, 63,211.71 and 30,700.74 is: 42,359.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,813.60 : 63,211.71 = 30,700.74 : x
  2. Step 2: Convert to fraction form
    45,813.60/63,211.71 = 30,700.74/x
  3. Step 3: Cross multiply
    45,813.60x = 63,211.71 × 30,700.74
  4. Step 4: Simplify right side
    45,813.60x = 1,940,646,273.67
  5. Step 5: Solve for x
    x = 1,940,646,273.67/45,813.60
  6. Step 6: Final answer
    x = 42,359.61

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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.