Home / 55,904.84-77,147.10-30,754.34

Finding the Fourth Proportional to 55,904.84, 77,147.10 and 30,754.34

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Solution

The fourth proportional to 55,904.84, 77,147.10 and 30,754.34 is: 42,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904.84 : 77,147.10 = 30,754.34 : x
  2. Step 2: Convert to fraction form
    55,904.84/77,147.10 = 30,754.34/x
  3. Step 3: Cross multiply
    55,904.84x = 77,147.10 × 30,754.34
  4. Step 4: Simplify right side
    55,904.84x = 2,372,608,143.41
  5. Step 5: Solve for x
    x = 2,372,608,143.41/55,904.84
  6. Step 6: Final answer
    x = 42,440.12

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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.