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Finding the Fourth Proportional to 61,723, 85,154.25 and 45,628.95

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Solution

The fourth proportional to 61,723, 85,154.25 and 45,628.95 is: 62,950.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,723 : 85,154.25 = 45,628.95 : x
  2. Step 2: Convert to fraction form
    61,723/85,154.25 = 45,628.95/x
  3. Step 3: Cross multiply
    61,723x = 85,154.25 × 45,628.95
  4. Step 4: Simplify right side
    61,723x = 3,885,499,015.54
  5. Step 5: Solve for x
    x = 3,885,499,015.54/61,723
  6. Step 6: Final answer
    x = 62,950.59

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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.