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Finding the Fourth Proportional to 61,141.70, 91,603.20 and 52,393.70

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Solution

The fourth proportional to 61,141.70, 91,603.20 and 52,393.70 is: 78,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,141.70 : 91,603.20 = 52,393.70 : x
  2. Step 2: Convert to fraction form
    61,141.70/91,603.20 = 52,393.70/x
  3. Step 3: Cross multiply
    61,141.70x = 91,603.20 × 52,393.70
  4. Step 4: Simplify right side
    61,141.70x = 4,799,430,579.84
  5. Step 5: Solve for x
    x = 4,799,430,579.84/61,141.70
  6. Step 6: Final answer
    x = 78,496.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.