Home / 56,847.94-78,449.09-31,356.68

Finding the Fourth Proportional to 56,847.94, 78,449.09 and 31,356.68

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Solution

The fourth proportional to 56,847.94, 78,449.09 and 31,356.68 is: 43,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,847.94 : 78,449.09 = 31,356.68 : x
  2. Step 2: Convert to fraction form
    56,847.94/78,449.09 = 31,356.68/x
  3. Step 3: Cross multiply
    56,847.94x = 78,449.09 × 31,356.68
  4. Step 4: Simplify right side
    56,847.94x = 2,459,903,080.05
  5. Step 5: Solve for x
    x = 2,459,903,080.05/56,847.94
  6. Step 6: Final answer
    x = 43,271.63

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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.