Home / 55,275.52-76,280.22-30,125

Finding the Fourth Proportional to 55,275.52, 76,280.22 and 30,125

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Solution

The fourth proportional to 55,275.52, 76,280.22 and 30,125 is: 41,572.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275.52 : 76,280.22 = 30,125 : x
  2. Step 2: Convert to fraction form
    55,275.52/76,280.22 = 30,125/x
  3. Step 3: Cross multiply
    55,275.52x = 76,280.22 × 30,125
  4. Step 4: Simplify right side
    55,275.52x = 2,297,941,627.50
  5. Step 5: Solve for x
    x = 2,297,941,627.50/55,275.52
  6. Step 6: Final answer
    x = 41,572.50

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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.