Home / 101,731.27-140,389.46-56,412.45

Finding the Fourth Proportional to 101,731.27, 140,389.46 and 56,412.45

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Solution

The fourth proportional to 101,731.27, 140,389.46 and 56,412.45 is: 77,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,731.27 : 140,389.46 = 56,412.45 : x
  2. Step 2: Convert to fraction form
    101,731.27/140,389.46 = 56,412.45/x
  3. Step 3: Cross multiply
    101,731.27x = 140,389.46 × 56,412.45
  4. Step 4: Simplify right side
    101,731.27x = 7,919,713,392.78
  5. Step 5: Solve for x
    x = 7,919,713,392.78/101,731.27
  6. Step 6: Final answer
    x = 77,849.35

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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.