Home / 56,532.87-78,012.32-31,380.75

Finding the Fourth Proportional to 56,532.87, 78,012.32 and 31,380.75

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Solution

The fourth proportional to 56,532.87, 78,012.32 and 31,380.75 is: 43,303.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,532.87 : 78,012.32 = 31,380.75 : x
  2. Step 2: Convert to fraction form
    56,532.87/78,012.32 = 31,380.75/x
  3. Step 3: Cross multiply
    56,532.87x = 78,012.32 × 31,380.75
  4. Step 4: Simplify right side
    56,532.87x = 2,448,084,953.94
  5. Step 5: Solve for x
    x = 2,448,084,953.94/56,532.87
  6. Step 6: Final answer
    x = 43,303.74

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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.