Home / 55,407.28-76,451.90-31,204.48

Finding the Fourth Proportional to 55,407.28, 76,451.90 and 31,204.48

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Solution

The fourth proportional to 55,407.28, 76,451.90 and 31,204.48 is: 43,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,407.28 : 76,451.90 = 31,204.48 : x
  2. Step 2: Convert to fraction form
    55,407.28/76,451.90 = 31,204.48/x
  3. Step 3: Cross multiply
    55,407.28x = 76,451.90 × 31,204.48
  4. Step 4: Simplify right side
    55,407.28x = 2,385,641,784.51
  5. Step 5: Solve for x
    x = 2,385,641,784.51/55,407.28
  6. Step 6: Final answer
    x = 43,056.47

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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.