Home / 55,615.16-76,748.54-30,120.95

Finding the Fourth Proportional to 55,615.16, 76,748.54 and 30,120.95

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Solution

The fourth proportional to 55,615.16, 76,748.54 and 30,120.95 is: 41,566.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,615.16 : 76,748.54 = 30,120.95 : x
  2. Step 2: Convert to fraction form
    55,615.16/76,748.54 = 30,120.95/x
  3. Step 3: Cross multiply
    55,615.16x = 76,748.54 × 30,120.95
  4. Step 4: Simplify right side
    55,615.16x = 2,311,738,935.91
  5. Step 5: Solve for x
    x = 2,311,738,935.91/55,615.16
  6. Step 6: Final answer
    x = 41,566.70

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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.