Home / 51,681.51-71,331.57-31,534.05

Finding the Fourth Proportional to 51,681.51, 71,331.57 and 31,534.05

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Solution

The fourth proportional to 51,681.51, 71,331.57 and 31,534.05 is: 43,523.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,681.51 : 71,331.57 = 31,534.05 : x
  2. Step 2: Convert to fraction form
    51,681.51/71,331.57 = 31,534.05/x
  3. Step 3: Cross multiply
    51,681.51x = 71,331.57 × 31,534.05
  4. Step 4: Simplify right side
    51,681.51x = 2,249,373,294.96
  5. Step 5: Solve for x
    x = 2,249,373,294.96/51,681.51
  6. Step 6: Final answer
    x = 43,523.75

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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.