Home / 35,781.80-53,728.86-30,306.92

Finding the Fourth Proportional to 35,781.80, 53,728.86 and 30,306.92

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Solution

The fourth proportional to 35,781.80, 53,728.86 and 30,306.92 is: 45,507.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,781.80 : 53,728.86 = 30,306.92 : x
  2. Step 2: Convert to fraction form
    35,781.80/53,728.86 = 30,306.92/x
  3. Step 3: Cross multiply
    35,781.80x = 53,728.86 × 30,306.92
  4. Step 4: Simplify right side
    35,781.80x = 1,628,356,261.71
  5. Step 5: Solve for x
    x = 1,628,356,261.71/35,781.80
  6. Step 6: Final answer
    x = 45,507.95

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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.