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Finding the Fourth Proportional to 61,947.44, 85,501.04 and 40,728.68

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Solution

The fourth proportional to 61,947.44, 85,501.04 and 40,728.68 is: 56,214.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,947.44 : 85,501.04 = 40,728.68 : x
  2. Step 2: Convert to fraction form
    61,947.44/85,501.04 = 40,728.68/x
  3. Step 3: Cross multiply
    61,947.44x = 85,501.04 × 40,728.68
  4. Step 4: Simplify right side
    61,947.44x = 3,482,344,497.83
  5. Step 5: Solve for x
    x = 3,482,344,497.83/61,947.44
  6. Step 6: Final answer
    x = 56,214.50

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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.