Home / 77,260.40-115,890.60-59,742.80

Finding the Fourth Proportional to 77,260.40, 115,890.60 and 59,742.80

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Solution

The fourth proportional to 77,260.40, 115,890.60 and 59,742.80 is: 89,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,260.40 : 115,890.60 = 59,742.80 : x
  2. Step 2: Convert to fraction form
    77,260.40/115,890.60 = 59,742.80/x
  3. Step 3: Cross multiply
    77,260.40x = 115,890.60 × 59,742.80
  4. Step 4: Simplify right side
    77,260.40x = 6,923,628,937.68
  5. Step 5: Solve for x
    x = 6,923,628,937.68/77,260.40
  6. Step 6: Final answer
    x = 89,614.20

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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.