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Finding the Fourth Proportional to 61,353.20, 91,900.20 and 50,985.20

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Solution

The fourth proportional to 61,353.20, 91,900.20 and 50,985.20 is: 76,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,353.20 : 91,900.20 = 50,985.20 : x
  2. Step 2: Convert to fraction form
    61,353.20/91,900.20 = 50,985.20/x
  3. Step 3: Cross multiply
    61,353.20x = 91,900.20 × 50,985.20
  4. Step 4: Simplify right side
    61,353.20x = 4,685,550,077.04
  5. Step 5: Solve for x
    x = 4,685,550,077.04/61,353.20
  6. Step 6: Final answer
    x = 76,370.10

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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.