Home / 53,747.77-74,170.28-30,776.84

Finding the Fourth Proportional to 53,747.77, 74,170.28 and 30,776.84

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Solution

The fourth proportional to 53,747.77, 74,170.28 and 30,776.84 is: 42,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,747.77 : 74,170.28 = 30,776.84 : x
  2. Step 2: Convert to fraction form
    53,747.77/74,170.28 = 30,776.84/x
  3. Step 3: Cross multiply
    53,747.77x = 74,170.28 × 30,776.84
  4. Step 4: Simplify right side
    53,747.77x = 2,282,726,686.43
  5. Step 5: Solve for x
    x = 2,282,726,686.43/53,747.77
  6. Step 6: Final answer
    x = 42,471.10

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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.