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Finding the Fourth Proportional to 61,969.80, 85,320.18 and 52,523.40

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Solution

The fourth proportional to 61,969.80, 85,320.18 and 52,523.40 is: 72,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,969.80 : 85,320.18 = 52,523.40 : x
  2. Step 2: Convert to fraction form
    61,969.80/85,320.18 = 52,523.40/x
  3. Step 3: Cross multiply
    61,969.80x = 85,320.18 × 52,523.40
  4. Step 4: Simplify right side
    61,969.80x = 4,481,305,942.21
  5. Step 5: Solve for x
    x = 4,481,305,942.21/61,969.80
  6. Step 6: Final answer
    x = 72,314.35

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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.