Home / 51,812.64-71,506.98-31,681.32

Finding the Fourth Proportional to 51,812.64, 71,506.98 and 31,681.32

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Solution

The fourth proportional to 51,812.64, 71,506.98 and 31,681.32 is: 43,723.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,812.64 : 71,506.98 = 31,681.32 : x
  2. Step 2: Convert to fraction form
    51,812.64/71,506.98 = 31,681.32/x
  3. Step 3: Cross multiply
    51,812.64x = 71,506.98 × 31,681.32
  4. Step 4: Simplify right side
    51,812.64x = 2,265,435,515.61
  5. Step 5: Solve for x
    x = 2,265,435,515.61/51,812.64
  6. Step 6: Final answer
    x = 43,723.61

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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.