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Finding the Fourth Proportional to 61,299.96, 84,603.80 and 57,297.76

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Solution

The fourth proportional to 61,299.96, 84,603.80 and 57,297.76 is: 79,080.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,299.96 : 84,603.80 = 57,297.76 : x
  2. Step 2: Convert to fraction form
    61,299.96/84,603.80 = 57,297.76/x
  3. Step 3: Cross multiply
    61,299.96x = 84,603.80 × 57,297.76
  4. Step 4: Simplify right side
    61,299.96x = 4,847,608,227.49
  5. Step 5: Solve for x
    x = 4,847,608,227.49/61,299.96
  6. Step 6: Final answer
    x = 79,080.12

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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.