Home / 55,063.61-75,981.69-30,533.81

Finding the Fourth Proportional to 55,063.61, 75,981.69 and 30,533.81

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Solution

The fourth proportional to 55,063.61, 75,981.69 and 30,533.81 is: 42,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,063.61 : 75,981.69 = 30,533.81 : x
  2. Step 2: Convert to fraction form
    55,063.61/75,981.69 = 30,533.81/x
  3. Step 3: Cross multiply
    55,063.61x = 75,981.69 × 30,533.81
  4. Step 4: Simplify right side
    55,063.61x = 2,320,010,115.57
  5. Step 5: Solve for x
    x = 2,320,010,115.57/55,063.61
  6. Step 6: Final answer
    x = 42,133.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.