Home / 56,515.14-77,991.09-31,364.64

Finding the Fourth Proportional to 56,515.14, 77,991.09 and 31,364.64

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Solution

The fourth proportional to 56,515.14, 77,991.09 and 31,364.64 is: 43,283.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,515.14 : 77,991.09 = 31,364.64 : x
  2. Step 2: Convert to fraction form
    56,515.14/77,991.09 = 31,364.64/x
  3. Step 3: Cross multiply
    56,515.14x = 77,991.09 × 31,364.64
  4. Step 4: Simplify right side
    56,515.14x = 2,446,162,461.06
  5. Step 5: Solve for x
    x = 2,446,162,461.06/56,515.14
  6. Step 6: Final answer
    x = 43,283.31

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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.