Home / 90,727.52-136,102.21-38,130.17

Finding the Fourth Proportional to 90,727.52, 136,102.21 and 38,130.17

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Solution

The fourth proportional to 90,727.52, 136,102.21 and 38,130.17 is: 57,199.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,727.52 : 136,102.21 = 38,130.17 : x
  2. Step 2: Convert to fraction form
    90,727.52/136,102.21 = 38,130.17/x
  3. Step 3: Cross multiply
    90,727.52x = 136,102.21 × 38,130.17
  4. Step 4: Simplify right side
    90,727.52x = 5,189,599,628.84
  5. Step 5: Solve for x
    x = 5,189,599,628.84/90,727.52
  6. Step 6: Final answer
    x = 57,199.84

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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.