Home / 77,025.60-115,570.80-41,990.40

Finding the Fourth Proportional to 77,025.60, 115,570.80 and 41,990.40

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Solution

The fourth proportional to 77,025.60, 115,570.80 and 41,990.40 is: 63,003.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,025.60 : 115,570.80 = 41,990.40 : x
  2. Step 2: Convert to fraction form
    77,025.60/115,570.80 = 41,990.40/x
  3. Step 3: Cross multiply
    77,025.60x = 115,570.80 × 41,990.40
  4. Step 4: Simplify right side
    77,025.60x = 4,852,864,120.32
  5. Step 5: Solve for x
    x = 4,852,864,120.32/77,025.60
  6. Step 6: Final answer
    x = 63,003.26

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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.