Home / 56,534.87-78,015.07-31,382.75

Finding the Fourth Proportional to 56,534.87, 78,015.07 and 31,382.75

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Solution

The fourth proportional to 56,534.87, 78,015.07 and 31,382.75 is: 43,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,534.87 : 78,015.07 = 31,382.75 : x
  2. Step 2: Convert to fraction form
    56,534.87/78,015.07 = 31,382.75/x
  3. Step 3: Cross multiply
    56,534.87x = 78,015.07 × 31,382.75
  4. Step 4: Simplify right side
    56,534.87x = 2,448,327,438.04
  5. Step 5: Solve for x
    x = 2,448,327,438.04/56,534.87
  6. Step 6: Final answer
    x = 43,306.50

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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.