Home / 61,260.20-91,890.30-45,708.20

Finding the Fourth Proportional to 61,260.20, 91,890.30 and 45,708.20

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Solution

The fourth proportional to 61,260.20, 91,890.30 and 45,708.20 is: 68,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,260.20 : 91,890.30 = 45,708.20 : x
  2. Step 2: Convert to fraction form
    61,260.20/91,890.30 = 45,708.20/x
  3. Step 3: Cross multiply
    61,260.20x = 91,890.30 × 45,708.20
  4. Step 4: Simplify right side
    61,260.20x = 4,200,140,210.46
  5. Step 5: Solve for x
    x = 4,200,140,210.46/61,260.20
  6. Step 6: Final answer
    x = 68,562.30

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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.