Home / 58,278.16-80,460.66-40,366.72

Finding the Fourth Proportional to 58,278.16, 80,460.66 and 40,366.72

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Solution

The fourth proportional to 58,278.16, 80,460.66 and 40,366.72 is: 55,731.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,278.16 : 80,460.66 = 40,366.72 : x
  2. Step 2: Convert to fraction form
    58,278.16/80,460.66 = 40,366.72/x
  3. Step 3: Cross multiply
    58,278.16x = 80,460.66 × 40,366.72
  4. Step 4: Simplify right side
    58,278.16x = 3,247,932,933.24
  5. Step 5: Solve for x
    x = 3,247,932,933.24/58,278.16
  6. Step 6: Final answer
    x = 55,731.56

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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.