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Finding the Fourth Proportional to 55,754.28, 77,004.78 and 36,719.12

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Solution

The fourth proportional to 55,754.28, 77,004.78 and 36,719.12 is: 50,714.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,754.28 : 77,004.78 = 36,719.12 : x
  2. Step 2: Convert to fraction form
    55,754.28/77,004.78 = 36,719.12/x
  3. Step 3: Cross multiply
    55,754.28x = 77,004.78 × 36,719.12
  4. Step 4: Simplify right side
    55,754.28x = 2,827,547,757.39
  5. Step 5: Solve for x
    x = 2,827,547,757.39/55,754.28
  6. Step 6: Final answer
    x = 50,714.45

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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.