Home / 55,602.24-76,728.16-30,451.20

Finding the Fourth Proportional to 55,602.24, 76,728.16 and 30,451.20

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Solution

The fourth proportional to 55,602.24, 76,728.16 and 30,451.20 is: 42,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,602.24 : 76,728.16 = 30,451.20 : x
  2. Step 2: Convert to fraction form
    55,602.24/76,728.16 = 30,451.20/x
  3. Step 3: Cross multiply
    55,602.24x = 76,728.16 × 30,451.20
  4. Step 4: Simplify right side
    55,602.24x = 2,336,464,545.79
  5. Step 5: Solve for x
    x = 2,336,464,545.79/55,602.24
  6. Step 6: Final answer
    x = 42,021.05

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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.