Home / 55,275.52-76,280.47-31,403.51

Finding the Fourth Proportional to 55,275.52, 76,280.47 and 31,403.51

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Solution

The fourth proportional to 55,275.52, 76,280.47 and 31,403.51 is: 43,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.52 : 76,280.47 = 31,403.51 : x
  2. Step 2: Convert to fraction form
    55,275.52/76,280.47 = 31,403.51/x
  3. Step 3: Cross multiply
    55,275.52x = 76,280.47 × 31,403.51
  4. Step 4: Simplify right side
    55,275.52x = 2,395,474,199.56
  5. Step 5: Solve for x
    x = 2,395,474,199.56/55,275.52
  6. Step 6: Final answer
    x = 43,336.98

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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.