Home / 55,278.27-76,285.80-31,403.52

Finding the Fourth Proportional to 55,278.27, 76,285.80 and 31,403.52

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Solution

The fourth proportional to 55,278.27, 76,285.80 and 31,403.52 is: 43,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,278.27 : 76,285.80 = 31,403.52 : x
  2. Step 2: Convert to fraction form
    55,278.27/76,285.80 = 31,403.52/x
  3. Step 3: Cross multiply
    55,278.27x = 76,285.80 × 31,403.52
  4. Step 4: Simplify right side
    55,278.27x = 2,395,642,646.02
  5. Step 5: Solve for x
    x = 2,395,642,646.02/55,278.27
  6. Step 6: Final answer
    x = 43,337.87

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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.