Home / 51,316.72-70,857.12-39,361.12

Finding the Fourth Proportional to 51,316.72, 70,857.12 and 39,361.12

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Solution

The fourth proportional to 51,316.72, 70,857.12 and 39,361.12 is: 54,349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,316.72 : 70,857.12 = 39,361.12 : x
  2. Step 2: Convert to fraction form
    51,316.72/70,857.12 = 39,361.12/x
  3. Step 3: Cross multiply
    51,316.72x = 70,857.12 × 39,361.12
  4. Step 4: Simplify right side
    51,316.72x = 2,789,015,603.17
  5. Step 5: Solve for x
    x = 2,789,015,603.17/51,316.72
  6. Step 6: Final answer
    x = 54,349.06

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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.