Home / 55,914.40-77,160.18-30,763.84

Finding the Fourth Proportional to 55,914.40, 77,160.18 and 30,763.84

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Solution

The fourth proportional to 55,914.40, 77,160.18 and 30,763.84 is: 42,453.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,914.40 : 77,160.18 = 30,763.84 : x
  2. Step 2: Convert to fraction form
    55,914.40/77,160.18 = 30,763.84/x
  3. Step 3: Cross multiply
    55,914.40x = 77,160.18 × 30,763.84
  4. Step 4: Simplify right side
    55,914.40x = 2,373,743,431.89
  5. Step 5: Solve for x
    x = 2,373,743,431.89/55,914.40
  6. Step 6: Final answer
    x = 42,453.17

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1.5x scale

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.