Home / 77,332.45-115,999.36-30,585.33

Finding the Fourth Proportional to 77,332.45, 115,999.36 and 30,585.33

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Solution

The fourth proportional to 77,332.45, 115,999.36 and 30,585.33 is: 45,878.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,332.45 : 115,999.36 = 30,585.33 : x
  2. Step 2: Convert to fraction form
    77,332.45/115,999.36 = 30,585.33/x
  3. Step 3: Cross multiply
    77,332.45x = 115,999.36 × 30,585.33
  4. Step 4: Simplify right side
    77,332.45x = 3,547,878,705.39
  5. Step 5: Solve for x
    x = 3,547,878,705.39/77,332.45
  6. Step 6: Final answer
    x = 45,878.27

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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.