Home / 55,361.47-76,396.01-31,487.63

Finding the Fourth Proportional to 55,361.47, 76,396.01 and 31,487.63

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Solution

The fourth proportional to 55,361.47, 76,396.01 and 31,487.63 is: 43,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,361.47 : 76,396.01 = 31,487.63 : x
  2. Step 2: Convert to fraction form
    55,361.47/76,396.01 = 31,487.63/x
  3. Step 3: Cross multiply
    55,361.47x = 76,396.01 × 31,487.63
  4. Step 4: Simplify right side
    55,361.47x = 2,405,528,756.94
  5. Step 5: Solve for x
    x = 2,405,528,756.94/55,361.47
  6. Step 6: Final answer
    x = 43,451.32

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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.