Home / 51,090.68-70,507.13-30,936.17

Finding the Fourth Proportional to 51,090.68, 70,507.13 and 30,936.17

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Solution

The fourth proportional to 51,090.68, 70,507.13 and 30,936.17 is: 42,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,090.68 : 70,507.13 = 30,936.17 : x
  2. Step 2: Convert to fraction form
    51,090.68/70,507.13 = 30,936.17/x
  3. Step 3: Cross multiply
    51,090.68x = 70,507.13 × 30,936.17
  4. Step 4: Simplify right side
    51,090.68x = 2,181,220,052.68
  5. Step 5: Solve for x
    x = 2,181,220,052.68/51,090.68
  6. Step 6: Final answer
    x = 42,693.11

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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.