Home / 55,432.20-76,480.02-31,558.80

Finding the Fourth Proportional to 55,432.20, 76,480.02 and 31,558.80

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Solution

The fourth proportional to 55,432.20, 76,480.02 and 31,558.80 is: 43,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,432.20 : 76,480.02 = 31,558.80 : x
  2. Step 2: Convert to fraction form
    55,432.20/76,480.02 = 31,558.80/x
  3. Step 3: Cross multiply
    55,432.20x = 76,480.02 × 31,558.80
  4. Step 4: Simplify right side
    55,432.20x = 2,413,617,655.18
  5. Step 5: Solve for x
    x = 2,413,617,655.18/55,432.20
  6. Step 6: Final answer
    x = 43,541.80

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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.